Enhancement on scheduling and harq-ack feedback for urllc, multiplexing scheme for control/data channel and dm-rs for nr, and activation mechanism, scheduling aspects, and synchronization signal (ss) blocks for new radio (nr) system with multiple bandwidth parts (bwps)

ABSTRACT

An apparatus, method, system and machine-readable medium. The apparatus may be an apparatus of a New Radio (NR) gNodeB or of a NR User Equipment (UE), and may include a memory and processing circuitry. The processing circuitry for the apparatus of the gNodeB is to: configure a plurality of bandwidth parts (BWPs) associated with respective numerologies; determine a physical downlink control channel (PDCCH) including downlink control information (DCI), the DCI including information on scheduled resources including BWP index for a data transmission to or from a User Equipment (UE), the data transmission to occupy one of the plurality of BWPs or multiple ones of the plurality of BWPs; encode the PDCCH for transmission; and process the data transmission based on the DCI. The apparatus of the NR UE is to: process a physical downlink control channel (PDCCH) from a NR gNodeB, the PDCCH including downlink control information (DCI) indicating scheduled resources for a data transmission to or from the UE, the data transmission to occupy one or multiple ones of a plurality of BWPs configured by the gNodeB; and process the data transmission based on the DCI.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of and priority from U.S.Provisional Patent Application No. 62/518,848 entitled “MultiplexingScheme for Control/Data Channel and DM-RS for NR,” filed Jun. 13, 2017,from U.S. Provisional Patent Application No. 62/519,705 entitled“Enhancement on Scheduling and HARQ-ACK Feedback for URLLC,” filed Jun.14, 2017, and from U.S. Provisional Patent Application No. 62/520,878entitled “Activation Mechanism, Scheduling Aspects, and SynchronizationSignal (SS) Blocks for New Radio (NR) System with Multiple BandwidthParts (BWPs),” filed Jun. 16, 2017, the entire disclosures of which areincorporated herein by reference.

TECHNICAL FIELD

This disclosure generally relates to the use of New Radio involvingmultiple bandwidth parts for cellular communication.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts a partitioned system bandwidth (BW) showing threebandwidth parts (BWPs);

FIG. 2 depicts a diagram of a slot showing a first option involvingcontrol resource set (CORESET) on a slot level and a second optionshowing CORESET on a symbol level according to one embodiment;

FIG. 3 depicts a slot including multiplexing of Physical DownlinkControl Channel (PDCCH) 304 and Physical Uplink Control Channel (PDSCH)306 therein according to some embodiments;

FIG. 4 depicts a partitioned system BW showing one example of configurednumerologies for data transmission occupying multiple BWPs according tosome embodiments;

FIG. 5 depicts a partitioned system BW showing one example of using asingle numerology for data transmission occupying multiple BWPsaccording to some embodiments;

FIG. 6 depicts a partitioned system BW showing one example of a samenumerology for the transmission of PDCCH and scheduled PDSCH accordingto some embodiments;

FIG. 7 depicts a partitioned system BW showing one example of crossnumerology scheduling for data transmission according to someembodiments;

FIG. 8 depicts a partitioned system BW showing another example of crossnumerology scheduling for data transmission according to someembodiments;

FIG. 9 depicts a slot where short physical uplink control channels(PUCCHs) are aggregated according to some embodiments;

FIG. 10 depicts a slot showing one example of a multiplexing ofdemodulation reference signal (DM-RS) and PDSCH in a TDM manner on a persymbol basis according to some embodiments;

FIG. 11 depicts a slot showing one example of using frequency divisionmultiplexing (FDM) for the transmission of DM-RS and PDSCH according tosome embodiments;

FIG. 12 depicts a slot showing one example of dedicated DM-RS 1202 forPDSCH 1204 and dedicated DM-RS 1203 for PDCCH 1206 respectivelyaccording to some embodiments;

FIG. 13 depicts a slot showing one example of a PDSCH spanning more thanone symbol, with a PDCCH transmitted in the first symbol of an allocatedPDSCH resource, where the DM-RS for PDSCH is transmitted in the firstsymbol within the resource where PDSCH and PDCCH do not overlapaccording to some embodiments;

FIG. 14 depicts a slot showing one example of a PDSCH spanning twosymbols, along with a PDCCH spanning one symbol, with a dedicated DM-RSfor the PDCCH transmission, and a dedicated DM-RS PDSCH the transmissionaccording to some embodiments;

FIG. 15 depicts a slot showing another example of a PDSCH spanning twosymbols, along with a PDCCH spanning one symbol, with a dedicated DM-RSfor the PDCCH transmission, and a dedicated DM-RS PDSCH the transmissionaccording to some embodiments;

FIG. 16 depicts a slot showing one example of multiplexing of PDSCH andPDCCH in a space division multiplexing (SDM) manner according to someembodiments;

FIG. 17 depicts an architecture of a system of a network in accordancewith some embodiments;

FIG. 18 depicts example components of a device in accordance with someembodiments;

FIG. 19 depicts example interfaces of baseband processing circuitry inaccordance with some embodiments;

FIG. 20 depicts an illustration of a control plane protocol stack inaccordance with some embodiments;

FIG. 21 depicts an illustration of a user plane protocol stack inaccordance with some embodiments;

FIG. 22 depicts components of a core network in accordance with someembodiments;

FIG. 23 depicts a block diagram illustrating components, according tosome example embodiments, of a system for support Network FunctionsVirtualization (NFV);

FIG. 24 depicts components, according to some example embodiments, ableto read instructions from a machine-readable or computer-readable medium(e.g., a non-transitory machine-readable storage medium) and to performany one or more of the methodologies discussed herein; and

FIG. 25 depicts a flow chart of a method according to some embodiments.

BACKGROUND

Mobile cellular communication has evolved significantly over the courseof generations. The next generation 5G wireless communication system forwhich the Third Generation Partnership Project (3GPP) new radio (NR)system is targeting will provide much more improved performance comparedto the 4G system in many aspects including spectral efficiency, lowlatency, and high reliability, etc. These multi-dimensional goals aredriven by different services and applications including enhanced MobileBroadband (eMBB), ultra-reliable low-latency cellular (URLLC) networks,etc. The 3GPP NR system targeting to be 5G system will enrich peoplelives with faster, more responsive, and more reliable wirelessconnectivity solutions. Improvement however are needed in NR networkswith respect to enhancements on scheduling and hybrid automatic repeatrequest acknowledgement (HARQ-ACK) feedback for URLL, to multiplexingschemes for control/data channels and demodulation reference signal(DM-RS) and to activation mechanisms, scheduling aspects, andsynchronization signal (ss) blocks for system with multiple bandwidthparts (BWPs).

DETAILED DESCRIPTION

The following detailed description refers to the accompanying drawings.The same reference numbers may be used in different drawings to identifythe same or similar elements. In the following description, for purposesof explanation and not limitation, specific details are set forth suchas particular structures, architectures, interfaces, techniques, etc. inorder to provide a thorough understanding of the various aspects ofvarious embodiments. However, it will be apparent to those skilled inthe art having the benefit of the present disclosure that the variousaspects of the various embodiments may be practiced in other examplesthat depart from these specific details. In certain instances,descriptions of well-known devices, circuits, and methods are omitted soas not to obscure the description of the various embodiments withunnecessary detail. For the purposes of the present document, the phrase“A or B” means (A), (B), or (A and B).

Embodiments herein are related to release 15 (Rel-15) new radio (NR) orfifth generation (5G) networks.

As agreed in NR, from the Radio Access Network 1 (RAN1) specificationperspective, a maximum channel bandwidth per NR carrier is 400 MHz. Fora UE not capable of supporting the carrier bandwidth however, resourceallocation for data transmission can be derived based on a two-stepfrequency-domain assignment process, where a first step involvesindicating a bandwidth part and a second step involves indicating thephysical resource blocks (PRBs) within the bandwidth part (BWP). For agiven UE, one or multiple bandwidth part configurations for eachcomponent carrier can be semi-statically signaled to a UE. Further,configuration of a BWP may include numerology, frequency location andbandwidth. In addition, in RAN1, a UE can expect at least one downlink(DL) BWP and one uplink (UL) BWP being active among the set ofconfigured BWPs for a given time instant. In RAN1, a UE is only assumedto receive/transmit within active DL/UL BWP(s) using the associatednumerology.

FIG. 1 is a diagram of a partitioned system bandwidth (BW) 100 showingBW part #1, BW part #2, and BW part #3. As shown in FIG. 1 , BW parts #1and #3 are configured to include a slot 102 of 1 ms duration with 14symbols 104 with 15 kHz subcarrier spacing, while BWP #2 is configuredto include slots 106 of roughly 0.25 ms duration with 14 symbols eachwith 60 kHz subcarrier spacing. Further, as agreed in NR, symbol levelalignment across different subcarrier spacings with the same cyclicprefix (CP) overhead is assumed within a subframe duration in a NRcarrier (all symbol and slot boundaries are aligned).

For URLLC, in order to meet stringent robustness and latencyrequirement, a gNodeB (gNB) may schedule data transmission spanning aplurality of symbols and occupying a wide transmission bandwidth. Giventhat a UE may be configured with multiple BWPs, it may not be desirablein terms of implementation complexity for the data transmission to spanmultiple BWPs with different numerologies, such as those of FIG. 1 forexample. Such implementation may not be feasible where the UE does notsupport frequency division multiplexing (FDM) of different numerologieswithin a carrier for a given time instance. To address this issue,certain mechanisms are needed to indicate the numerology for datatransmission spanning multiple BWPs. Such mechanisms will be describedin greater detail in the section entitled “Scheduled Data Transmissionon Multiple BWPs” below.

A first set of embodiments herein relate to an enhancement on schedulingand hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedbackfor URLLC. In particular, embodiments may include one or more of:scheduled data transmission on multiple BWPs, and enhancement onHARQ-ACK feedback on PUCCH.

In addition to the above issues surrounding BWP partitioning, in NR usecase families, enhanced mobile broadband (eMBB) and ultra-reliable andlow latency communications (URLCC) have very different requirements interms of user plane (U-plane) latency and required coverage levels. Thekey requirements for URLLC relate to U-plane latency and reliability.For URLLC, the target for U-plane latency should be 0.5 ms for UL, and0.5 ms for DL, and the target for reliability should be 1-10⁻⁵ within 1ms. It NR, it has been agreed that data transmission can have a minimumduration of 1 symbol and can start at any OFDM symbol. Per NR, a UE canbe configured to perform “DL control channel monitoring” per 1 symbol orper one slot with respect to the numerology of the DL control channel.In particular, a UE may be configured with a symbol level or slot levelcontrol resource set (CORESET) with certain offset/periodicity in oneslot for DL control channel monitoring occasions.

FIG. 2 illustrates a slot 200 including 14 symbols 202 and shows twoexamples of CORESET for a given UE. According to Option A in FIG. 2 ,the CORESET 204 for the particular UE may be implemented on a per slotbasis, spanning across symbols 202. According to Option B in FIG. 2 ,the CORESET 206 may be implemented on a symbol by symbol basis only. Inthe context of CORESET implementation, each configured DL BWP (BWP)includes at least one CORESET for the UE to monitor possible receptionof control information for the UE.

FIG. 3 illustrates a slot 300 including 14 symbols 302, and showsexamples of multiplexing Physical Downlink Control Channel (PDCCH) 304and Physical Uplink Control Channel (PDSCH) 306 in a same slot. Forsymbol level data transmission according to NR, the DL data channelPDSCH may be transmitted in different symbols of a slot (Option A) or inthe same symbol(s) (Option B) as compared with the DL control channelPDCCH. The latter case, Option A, is more suitable for low latencyapplications, such as, for example, URLLC, while Option B is moresuitable otherwise. In Option A, PDCCH and PDSCH are multiplexed in atime division multiplexing (TDM) manner and are transmitted in differentsymbols. In Option B, PDCCH and PDSCH are multiplexed in a frequencydivision multiplexing (FDM) manner.

For the two options in FIG. 3 , it may be more desirable to place thedemodulation reference signal (DM-RS) in different constellationpositions to multiplex DM-RS and control/data channel more efficiency.To further improve the spectrum efficiency, it may be desirable tomultiplex PDCCH and PDSCH in a spatial division multiplexing (SDM)manner. In this case, certain DM-RS may be shared between PDCCH andPDSCH on the overlapped resource. Such mechanisms will be described ingreater detail in the section entitled “Multiplexing scheme when PDCCHand PDSCH are transmitted in different symbol(s)” below.

A second set of embodiments relate to multiplexing schemes forcontrol/data channel and DM-RS for NR. In particular, embodiments mayinclude one or more of the following: Multiplexing scheme when PDCCH andPDSCH are transmitted in different symbol(s); and Multiplexing schemewhen PDCCH and PDSCH are transmitted in the same symbol(s).

In addition to the above issues surrounding bandwidth partitioning andthe multiplexing of DM-RS and control/data channels, in RAN1, it wasagreed that one or multiple BWPs can be semi-statically configured to aUE. The use of BWPs can be envisioned in the following example scenariosaccording to RAN 1: according to the frequency range contemplated forthe larger NR BWs for high data rate communication (including takinginto consideration BW and the center frequency), and/or according to thedifferent numerologies as between different BWPs (including taking intoconsideration subcarrier spacing and slot length). Regarding thefrequency range scenario, RAN1 contemplates the adaptation of DLreception bandwidth from a small bandwidth to a larger bandwidth incases of large BW PDSCH scheduling (e.g., 10 MHz for one BWP and 50 MHzfor another BWP), and further the adjustment of UL transmissionbandwidth to a larger one in accordance to the scheduled bandwidth for aphysical uplink shared channel (PUSCH). Regarding the differentnumerology scenario as between different BWPs, RAN1 contemplatesconfiguration different services such as URLLC and eMBB with differentnumerologies.

The power consumption of radio frequency (RF), analog-to-digital (A/D)or digital-to-analog (D/A) converters and the digital front end increaseas the RF bandwidth becomes wider. The baseband power consumption mainlydepends on the fast Fourier transform (FFT) size and on the data rate.As it was agreed in RAN1, the NR maximum component carrier bandwidth is400 MHz. Thus, in RAN1 high power consumption can be expected even atlow data rates or while idling, mainly because of the RF powerconsumption.

Therefore, having the operating bandwidth adjustment capabilitydepending on the data rate can be beneficial in terms of reducing the UEpower consumption. If a UE is configured with small BWP, it can benefitfrom low power consumption. When a high data rate is demanded, the BWPcan be switched to a wider one. Such a wide BWP could be equal to thatof the component carrier configured to the UE in accordance with theUE's bandwidth capability.

Another use case can be the scenarios in which multiple numerologiesshould be supported on an NR cell. For example, in cases whereslot-based transmissions for a URLLC service is employed in a cell,larger subcarrier spacing can be configured for the BWP for the URLLCservice in order to have short slot lengths for reduced latency, whileusing separate time-frequency resources from the eMBB service. Suchmechanisms will be described in greater detail in the section entitled“Adjusting Operating Bandwidth Capability Depending on Data Rate” below.

A third set of embodiments herein relate to multiple BWPs. Specifically,embodiments herein relate to the activation mechanism, schedulingaspects and SS block numerology for multiple BWPs.

Scheduled Data Transmission on Multiple BWPs

As mentioned previously, when a UE is configured with multiple BWPsusing different numerologies, it is more appropriate to employ a singlenumerology for data transmission occupying multiple bandwidth parts,which can help to reduce UE implementation complexity and to simplifythe design. The above regime can be applied for UEs that do not supportFDM involving different numerologies within a carrier for a given timeinstance.

According to a first set of embodiments, a scheduling DL or UL datatransmission on multiple BWPs is provided.

According to one embodiment, where the UE is configured with a pluralityof BWPs with different respective numerologies, and a scheduled datatransmission occupies multiple ones of the bandwidth parts, a numerologyused for the data transmission in each BWP may be determined based onthe configured numerology. The above would advantageously do away withthe need for explicit signaling for the numerology used in each BWP inthe downlink control information (DCI), which helps in reducingsignaling overhead.

FIG. 4 is diagram of a partitioned system bandwidth (BW) 400 showing BWpart #1, and BW part #2. As shown in FIG. 4 , BW part #1 is configuredto include a slot 402 of 1 ms duration with 14 symbols 404 with 15 kHzsubcarrier spacing, while BWP #2 is configured to include slots 406 ofroughly 0.25 ms duration with 14 symbols each with 60 kHz subcarrierspacing. FIG. 4 illustrates one example of configured numerologies fordata transmission 408 occupying multiple BWPs. In the example, 15 KHzand 60 KHz subcarrier spacings are configured for bandwidth part #1 and#2, respectively and employed for the data transmission occupying BWP #1and #2. Given that different BWPs may be associated with differentnumerologies as suggested in the example of FIG. 4 , resource allocationor physical resource block (PRB) indexing to specifically identify theresources allocated for data transmission may be defined in accordancewith a reference numerology (e.g. 15 KHz), or with a numerology whichhas a smallest or a largest subcarrier spacing in configured BWPs.Alternatively, the resource allocation or PRB indexing may be defined inaccordance with a numerology configured by higher layers via NR minimumsystem information (MSI), NR remaining minimum system information(RMSI), NR system information block (SIB) or radio resource control(RRC) signaling. In addition, for a data transmission occupying multipleBWPs using different numerologies, encoded symbols may be mapped in thefrequency first and time second manner and fill all available resourcesin one BWP, and subsequently, continue to be mapped into the next BWP.

In another embodiment, where a UE is configured with multiple BWPsassociated with different numerologies, and scheduled data transmissionoccupies multiple bandwidth parts, numerology used in each BWP can beexplicitly signaled in the DCI (the DCI would include explicitinformation on the numerology used in each BWP). In such a case, thenumerology signaled in the DCI would override the numerology which isconfigured for the UE for the bandwidth part. Such a dynamic signalingapproach achieved through DCI signaling can be specified for ULtransmissions to allow transmissions with different numerologies fromdifferent UEs within a single BWP, irrespective of any defaultnumerology that may be configured for the BWP for a given UE. On theother hand, for DL scheduling, the DCI-indicated numerology of ascheduled PDSCH can be different from the configured numerology for aBWP only for PDSCH allocations spanning at least a number of BWPs.

Where a UE does not support FDM of multiple numerologies within acarrier for a given time instance, a single numerology may be appliedfor the data transmission occupying multiple BWPs. In this case, singlenumerology value can be explicitly indicated in the DCI. Note that theresource allocation or PRB indexing may be defined in accordance withthe numerology which is signaled in the DCI.

FIG. 5 is diagram of a partitioned system bandwidth (BW) 500 showing BWpart #1, and BW part #2. As shown in FIG. 5 , BW part #1 is configuredto include a slot 502 of 1 ms duration with 14 symbols 504 with 15 kHzsubcarrier spacing, while BWP #2 is configured to include slots 506 ofroughly 0.25 ms duration with 14 symbols each with 60 kHz subcarrierspacing. FIG. 5 illustrates one example of using a single numerology fordata transmission occupying multiple BWPs. In the example, the datatransmission 508 spans 2 symbols in the time domain and occupies BWP #1and #2 using a 15 KHz subcarrier spacing. Further, in this option, it isunderstood that a 15 KHz subcarrier spacing was previously explicitlyindicated in the DCI scheduling the data transmission 508.

FIG. 6 is diagram of a partitioned system bandwidth (BW) 600 showing BWpart #1, and BW part #2. As shown in FIG. 6 , BW part #1 is configuredto include a slot 602 of 1 ms duration with 14 symbols 604 with 15 kHzsubcarrier spacing, while BWP #2 is configured to include slots 606 ofroughly 0.25 ms duration with 14 symbols each with 60 kHz subcarrierspacing. FIG. 6 illustrates one example of same numerology for thetransmission of PDCCH 610 and scheduled PDSCH 608. In the example, bothPDCCH 610 and scheduled PDSCH 608 employ a 60 kHz subcarrier spacingnumerology. Further, a numerology including a 15 kHz subcarrier spacing,is applied for the PDSCH 608 occupying both BWPs #1 and #2.

In another, related embodiment, where the UE is configured with multipleBWPs associated with different numerologies, and a scheduled datatransmission occupies multiple bandwidth parts, a single numerology maybe applied for the transmission of data, where the single numerology isderived from the numerology used for the transmission of the PDCCHscheduling the corresponding data transmission. As a further extension,a single numerology may be applied for the data transmission and for thePDCCH scheduling the corresponding data transmission. This regime maylargely simplify the design and implementation of data transmissionscheduling in multiple BWPs associated with different numerologies. Inother words, the numerology employed for the transmission of PDCCH wouldoverride the numerology which is configured for the BWP used by the UE.

FIG. 7 is diagram of a partitioned system bandwidth (BW) 700 showing BWpart #1, and BW part #2. As shown in FIG. 7 , BW part #1 is configuredto include a slot 702 of 1 ms duration with 14 symbols 704 with 15 kHzsubcarrier spacing, while BWP #2 is configured to include slots 706 ofroughly 0.25 ms duration with 14 symbols each with 60 kHz subcarrierspacing. FIG. 7 illustrates one example of cross numerology schedulingfor data transmission. In the example, PDCCH 710 in BWP #1 using 15 KHzsubcarrier spacing is used to schedule the PDSCH 708 in bandwidth part#2 using 60 KHz subcarrier spacing. Thus, PDCCH 710 and the scheduleddata transmission may be transmitted in the different BWPs associatedwith different numerologies. For instance, a BWP configured with largersubcarrier spacing can be allocated for data transmission so as toreduce latency. Similar to above, no explicit signaling is needed in theDCI to indicate the numerology for data transmission, since the DCI orhigher layer signaling, or a combination of the two, will indicate theBWP index for the PDSCH 708 to the UE. Where BWPs overlap, a principlesimilar to the above is possible, according to which a PDCCH in thefirst BWP may schedule PDSCH in the second BWP overlapped with thefirst. In such as case, a UE may not be assumed to continue a monitoringof PDCCH and PDSCH in the first BWP when receiving PDSCH in the secondBWP because of the overlap. Nevertheless, the UE may in fact be adaptedto monitor both BWPs according to the UE's capabilities.

FIG. 8 is diagram of a partitioned system bandwidth (BW) 800 showing BWpart #1, and BW part #2. As shown in FIG. 8 , BW part #1 is configuredto include a slot 802 of 1 ms duration with 14 symbols 804 with 15 kHzsubcarrier spacing, while BWP #2, which includes BWP part #1 within it,is configured, exclusive of BWP #1, to include slots 806 of roughly 0.25ms duration with 14 symbols each with 60 kHz subcarrier spacing. FIG. 8illustrates another example of cross numerology scheduling for datatransmission. In the example, PDCCH 810 in BWP #1 using 15 KHzsubcarrier spacing is used to schedule the PDSCH 808 in BWP #2 using 60KHz subcarrier spacing where BWP #2 contains BWP #1.

According to some embodiments, a BWP may be configured with apredetermined time pattern, which time pattern may be semi-staticallyconfigured via UE-specific RRC signaling to indicate the active BWP at acertain instance of time. Accordingly, two or more BWPs may bemultiplexed in a time division multiplexing (TDM) manner. In one option,the transmission time including symbol/slot offset of a transmission andperiodicity for the BWP may be configured in a semi-static manner by thegNodeB. Note that to achieve finer granularity of a BWP configuration, aperiodicity which is at a symbol level may be configured for the BWP bythe gNodeB.

In another option, the time pattern for BWP configuration can berealized by configuring the monitoring occasions for NR PDCCH monitoringby the UE with different PDCCH CORESETs corresponding to different BWPs.Accordingly, the NR PDCCH monitoring occasions that can be configured atslot- or symbol-level via a periodicity and time offsets can effectivelyindicate the BWPs to monitor for DL control channel reception or PDSCHreception or for UL transmissions by the UE. For PDSCH reception or ULtransmissions (PUSCH, PUCCH, SRS), only the time domain resourceindication and possible frequency domain resource allocation within theactivated BWP for the corresponding time duration may be necessary.Where multiple BWPs have the same numerology, such time patterns mayalso be used to indicate instances when the UE may be scheduled usingmultiple BWPs or may be scheduled to receive PDCCH and PDSCHsimultaneously on two or more BWPs. Alternatively, in another option,certain time gap may be defined between the times when a BWP may beactive. Further, the time gap can be defined as a function of physicalor virtual cell ID, UE ID (e.g., Cell Radio Network Temporary Identifier(C-RNTI)), etc.

Enhancement on HARQ-ACK feedback on PUCCH

Especially in URLLC applications (although embodiments are not solimited), not only is low latency a significant goal (hence thediscussion of multiple BWP use in the DL and UL above), but so isreliability. The section here relating to HARQ-ACK addresses in partreliability in URLLC applications.

For NR, HARQ-ACK feedback can be carried in short or long physicaluplink control channel (PUCCH). Further, short PUCCH may span 1 or 2symbols while long PUCCH may span from 4 to 14 symbols. In the case ofHARQ-ACK feedback for the DL data transmission, depending on the UElocation or channel status, long PUCCH or aggregation of short PUCCH maybe employed to improve the robustness of PUCCH detection. To reducelatency for URLLC DL transmission, for instance, where a UE feeds backNACK for a corresponding PDSCH, early termination of NACK feedback maybe desirable so as to allow the gNodeB to reschedule the retransmissionas soon as possible.

Embodiments of enhancement on HARQ-ACK feedback on PUCCH are provided asfollows below

According to one embodiment, a long PUCCH to carry HARQ-ACK feedback maybe configured or dynamically indicated in the DCI scheduling PDSCH forUE. In NR, it was agreed that time domain orthogonal cover code (OCC)can be applied over multiple uplink control information(UCI)/DeModulation Reference Signal (DMRS) symbols per frequency hop fora long PUCCH that carries one or two-bit HARQ-ACK feedback. In thiscase, according to one embodiment, time domain OCC may be disabled forURLLC to achieve a potential early termination of HARQ-NACK feedback.Whether a time domain OCC is disabled or enabled can be configured byhigher layers via NR MSI, NR RMSI, NR SIB or RRC signaling.

In another embodiment, aggregation of a 1 or 2 symbol short PUCCH may beemployed for carrying HARQ-ACK feedback. To further improve the linklevel performance, frequency hopping may be applied for the transmissionof aggregated short PUCCH to exploit the benefit of frequency diversity.In one option, a frequency hopping pattern may be defined as a functionof one or more following parameters: physical or virtual cell ID, UE ID(e.g., Cell Radio Network Temporary Identifier (C-RNTI)), symbol or slotor frame index, and a parameter which is indicated in the DCI. Further,the resource for the first transmission of short PUCCH can be configuredby RRC signaling or dynamically indicated in the DCI or combinationthereof.

FIG. 9 illustrates one example of a slot 900 having 14 symbols 902therein, where frequency hopping for an aggregated PUCCH 904 including2-symbol short PUCCHs 906 is shown. In the example, five 2-symbol shortPUCCHs 906 are aggregated. The aggregation can be configured by higherlayers via RRC signaling, or it may be dynamically indicated in the DCI,or combination thereof. In another option, the frequency hopping patternmay be configured by higher layers via NR MSI, NR RMSI, NR SIB or RRCsignaling. In yet another option, frequency hopping for aggregated2-symbol short PUCCHs can be performed across multiple BWPs using a samenumerology or with different numerologies.

In another embodiment, where a UE is configured with multiple UL BWPs,to reduce latency, a PUCCH carrying HARQ-ACK may be transmitted in adifferent UL BWP as compared with the BWP for monitoring and receptionof PDCCH or PDSCH. There may be a one-to-one association between a DLBWP and a UL BWP, similar to a system information block 2 (SIB2) linkagebetween DL and UL carriers in LTE. Where a larger subcarrier spacing ascompared with BWP for PDCCH/PDSCH is configured in the BWP for thetransmission of PUCCH, the latency on HARQ-ACK feedback may be reduced,assuming that sufficient link budget is guaranteed. For the above totake place, the BWP index is to be indicated in the DCI, or is to beconfigured by higher layers via RRC signaling, or a combination of thetwo, the BWP index indicating the higher subcarrier spacing.

In one another embodiment, where a UE has received multiple PDSCHs onmultiple DL BWPs, either in different slots or in the same slot,HARQ-ACKs corresponding to the PDSCHs received on the different BWPs canbe carried by a single PUCCH on a BWP. The BWPs may employ differentnumerologies with respect to one another and/or the PDSCHs may employdifferent numerologies with respect to one another. While a PUCCHcarrying HARQ-ACK for a single BWP may employ the same numerology as theDL data channel, the PUCCH carrying the HARQ-ACKs for the BWPs employingdifferent numerologies may employ the numerology corresponding to theBWP where the PUCCH is transmitted. This can avoid inter-modulationdistortion and reduce peak-to-average-power ratio compared to sendingmultiple PUCCHs on the respective BWPs separately. A choice as to whichBWP and/or as to which numerology the PUCCH should use can be configuredvia higher layers or indicated via DCI or a combination thereof. Themapping of the HARQ-ACK bits onto the PUCCH can be pre-defined orconfigured via higher layers or a combination thereof. It is to be notedthat a PUCCH carrying HARQ-ACK for a single BWP may also have adifferent numerology as that of the DL data channel, and the differentnumerology could be configured via higher layers or indicated via DCI ora combination thereof.

A first set of embodiments relating to an enhancement on scheduling andhybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback forURLLC having been described above, including on scheduled datatransmission on multiple BWPs, and enhancement on HARQ-ACK feedback onPUCCH, the description to follow will address multiplexing schemes forthe transmission of PDCCH and PDSCH on different symbols and also on thesame symbols.

The Demodulation Reference Signals (DM-RS) are used to enable coherentsignal demodulation at the receiver. DM-RS are typically timemultiplexed with DL or UL data, and are transmitted on symbols of aslot, using the same bandwidth as the data.

Embodiments of multiplexing schemes for DM-RS and PDSCH can be providedas follows below.

Multiplexing Scheme when PDCCH and PDSCH are Transmitted in DifferentSymbol(s)

According to one embodiment, a DM-RS can be multiplexed with PDSCH in aTDM manner and can be transmitted prior to or after PDSCH. In this case,multiple UEs may share the same symbol for DM-RS transmission. In NR, itwas agreed that front-load DM-RS would be supported, and that a DM-RSposition for slot-based transmission would be fixed regardless of thefirst symbol location of PDSCH. According to embodiments, depending onthe location of DM-RS and the symbol gap between DM-RS and PDSCH,additional DM-RS symbols in the slot may be configured to improve thechannel estimation performance. Note that the above option can apply foruplink data transmissions where Discrete Fourier Transform SpreadOrthogonal Frequency Division Multiplexing (DFT-s-OFDM) based waveformis used on the uplink. In such a case, to maintain a single carrierproperty, TDM of the DM-RS and the data transmission can be used.

Reference is now made to FIG. 10 , which shows a diagram of a slot 1000having 14 symbols, and showing symbol-level transmissions therein. FIG.10 illustrates one example of a multiplexing of DM-RS 1002 and PDSCH1004 in a TDM manner on a per symbol basis. In the example, a sameresource (slot) is allocated for the transmission of DM-RS 1002 andPDSCH 1004.

Referring now to FIG. 11 , a diagram of a slot 1100 is shown having 14symbols, and showing symbol-level transmission therein. In theembodiment of FIG. 11 , a DM-RS 1102 can be multiplexed with a PDSCH1104 in a FDM manner, and can be transmitted on the symbol(s) where thePDSCH 1104 is scheduled. In particular, unused resource elements (RE) ina symbol carrying the DM-RS 1102 can be used for the transmission ofPDSCH 1104 as shown in FIG. 11 . In particular, FIG. 11 illustrates oneexample of using FDM for the transmission of DM-RS 1102 and PDSCH 1104,where in the first symbol 1108, PDSCH 1104 is transmitted in the unusedDM-RS REs while in the second symbol 1110, PDSCH 1104 occupies the wholeallocated resource. The multiplexing of DM-RS in one or more symbolswhere the data is transmitted can also apply for the multiplexing ofDM-RS and physical uplink shared channel (PUSCH).

In another embodiment, for the above two options of FIGS. 10 and 11 , achoice as to which option is employed may be configured by higher layersor dynamically indicated in the downlink control information (DCI) or acombination thereof, or implicitly determined by the subcarrier spacingand/or MCS and/or allocated bandwidth. For uplink transmissions, theoption to be used can also be determined based on the waveform of thePUSCH. For instance, for a URLLC application, a FDM of DM-RS and PDSCHmay be beneficial in term of reduced latency, while for datatransmission in the high band, TDM of DM-RS and PDSCH may be moreappropriate as it may improve the spectrum efficiency due to a sharingDM-RS among multiple UEs.

Multiplexing Scheme when PDCCH and PDSCH are Transmitted in the SameSymbol(s)

Referring back to FIG. 3 , for symbol-level transmission of PDSCH 304,PDCCH 306 and PDSCH 304 are multiplexed in a FDM manner and transmittedin the same symbol(s) in the slot. In this case, the UE may beconfigured to monitor symbol level CORESET for PDCCH candidates. Thus,when PDCCH 306 and PDSCH 304 are transmitted in the same symbol(s), theycan be multiplexed in a FDM manner. Depending on the number of symbolsallocated for PDCCH and PDSCH, various options can be considered on themultiplexing schemes for DM-RS and PDCCH/PDSCH. Where PDSCH 304 andPDCCH 306 span the same symbol(s), dedicated DM-RS can be used for eachof PDSCH and PDCCH, respectively. Further, the PRB bundling size forPDSCH and PDCCH (where bundling is effected to reduce signaling overheadand improve channel estimation) may be aligned to simplify theimplementation at the UE side.

Referring now to FIG. 12 , a diagram of a slot 1200 is shown having 14symbols, and showing symbol-level transmission therein. FIG. 12illustrates one example of dedicated DM-RS 1202 for PDSCH 1204 anddedicated DM-RS 1203 for PDCCH 1206 respectively, where PDSCH 1204 andPDCCH 1206 are transmitted in the same symbol. In the example, localizedtransmission is employed for PDCCH 1206 (in terms of a localizedfrequency) while a distributed transmission (in terms of the frequenciesused for the PDSCH 1204 transmission being distributed across a topregion and bottom region of the slot bandwidth) is employed. Inaddition, different DM-RS patterns in the frequency domain, includingDM-RS density in the frequency domain, may be used for the transmissionof PDCCH and PDSCH, respectively as shown in FIG. 12 .

Where the PDSCH and/or PDCCH span two or more symbols, depending on atransmission duration of the PDCCH transmission, different DM-RSpositions may be considered.

In this regard, reference is first made to FIG. 13 . FIG. 13 shows adiagram of a slot 1300 having 14 symbols, and showing a PDSCH 1304 whichspans two symbols 1312 and 1313. According to a first option, as shownin FIG. 13 , where the PDSCH, such as PDSCH 1304, spans more than onesymbol, and where a PDCCH 1306 is transmitted in the first symbol of anallocated PDSCH resource (in this case, in symbol 1312), the DM-RS 1302for PDSCH is transmitted in the first symbol within the resource wherePDSCH and PDCCH do not overlap. Alternatively, or additionally, in thesecond symbol of PDSCH transmission, DM-RS 1302 for PDSCH can betransmitted on the frequency resources in the second symbol where PDSCHand PDCCH overlap the first symbol as seen in the frequency domain. Asshown, the DM-RS 1303 for PDCCH is transmitted in the first symbol.

In another, second option, in case when a PDSCH spans more than onesymbol and a PDCCH is transmitted in the first symbol of an allocatedPDSCH resource, DM-RS for PDSCH is transmitted in the second symbol ofthe PDSCH transmission. In this regard, reference is made to FIG. 14 ,which shows a diagram of a slot 1400 having 14 symbols, and showing aPDSCH 1404 which spans two symbols 1412 and 1413, along with PDCCH 1406which spans one symbol. In addition, a dedicated DM-RS 1403 is employedfor the PDCCH transmission, and a dedicated DM-RS 1402 is employed forPDSCH transmission. FIG. 7 illustrates one example of option 2 for DM-RSpositions when PDSCH spans two symbols.

A same principle for the first and second options shown by way ofexample in FIGS. 13 and 14 respectively may apply for a case where aduration of a PDSCH transmission is greater than a duration of a PDCCHtransmission. For example, when a PDSCH spans 3 symbols, and PDCCH spans2 symbols.

According to a third option, when the PDSCH and PDCCH are transmitted intwo symbols, a DM-RS for PDSCH is transmitted in the first symbol ofPDSCH transmission in the allocated resource, while DM-RS for PDCCH istransmitted in the first symbol only or both symbols for PDCCHtransmission. In this regard, reference is made to FIG. 15 , which showsa diagram of a slot 1500 having 14 symbols, and showing a PDSCH 1504which spans two symbols 1512 and 1513, along with PDCCH 1506 which spanstwo symbols. In addition, a dedicated DM-RS 1503 is employed for thePDCCH transmission, and a dedicated DM-RS 1502 is employed for PDSCHtransmission. Here, DM-RS 1502 for PDSCH is transmitted in the firstsymbol of PDSCH transmission in the allocated resource, while DM-RS 1503for PDCCH is transmitted in both symbols for PDCCH transmission.

Whether DM-RS for PDCCH and DM-RS for PDSCH can share the same symbolcan be determined by the antenna port (AP) multiplexing scheme of DM-RSfor PDSCH. For example, if different APs are multiplexed in a FDMmanner, the DM-RS for PDSCH and the DM-RS for PDCCH can share the samesymbol. If different APs are distinguished by different cyclic shifts,the DM-RSs cannot share the same symbol.

According to a further embodiment, when a PDCCH and PDSCH aretransmitted in the same symbol(s), the PDSCH and PDCCH can bemultiplexed using spatial division multiplexing (SDM), or a combinationof FDM and SDM. In particular, where a PDSCH is scheduled based ontransmission on multiple layers, one layer can be used for thetransmission of PDCCH in the shared physical resource. Further,remaining layers for overlapped resources or all layers fornon-overlapped resources can be used for the transmission of PDSCH. AnAP index used for the transmission of PDCCH can be pre-defined orconfigured by higher layers via RRC signaling, or derived from one ormore of the following parameters: physical or virtual cell identifier(ID), UE ID, and time or frequency resource index includingsymbol/slot/frame index, etc. Whether to employ SDM for PDCCH and PDSCHcan be configured by higher layers via NR minimum system information(MSI), NR remaining minimum system information (RMSI), NR systeminformation block (SIB) or radio resource control (RRC) signaling.

FIG. 16 illustrates one example of multiplexing of PDSCH and PDCCH in aSDM manner. FIG. 16 shows a diagram of a slot 1600 having 14 symbols,and showing a PDSCH 1604 which spans two symbols 1612 and 1613, alongwith a shared resource 1607 for PDSCH and PDCCH, which shared resource1607 spans one symbol. In addition, a dedicated DM-RS 1602 is employedfor PDSCH transmission, while a shared DM-RS 1605 is employed for bothPDSCH and PDCCH. In the example, two symbols are allocated for PDSCHtransmission 1604, and PDCCH is transmitted in the first symbol of PDSCHtransmission (multiplexed using SDM). Shared resource and shared DM-RSin the first symbol is employed for the transmission of PDCCH and PDSCH.Thus, according to one embodiment, a shared DM-RS can be used for thetransmission of PDSCH and PDCCH on a shared resource. According to oneoption, the shared DM-RS can be generated based on the DM-RS used forthe PDCCH. Alternatively, the shared DM-RS can be generated based on theDM-RS used for the PDSCH.

If different APs of DM-RS are multiplexed in a FDM manner, the resourceelements (REs) used for PDCCH can be around the REs for DM-RS allocatedby the APs for PDCCH. If different APs of DM-RS are distinguished bydifferent cyclic shifts, there can be only the DM-RS for PDSCH, and thePDCCH can be quasi-co-located (QCL'd) with one or some APs of DM-RS. Theblock-wise DM-RS can be used, where the search space of one UE could bewithin one block. If Orthogonal Cover Code (OCC) can be configured orused for DM-RS transmission, no-OCC may be applied when the shared DM-RSfor PDCCH and PDSCH is used.

As another embodiment, the DM-RS location (in the time domain) for asymbol-level PDSCH can be made to depend on the location of the firstsymbol of the scheduled symbol-level PDSCH within the slot.Specifically, for a symbol-level PDSCH occurring within a certain numberof symbols from a front-loaded DM-RS location for slot-level scheduling,the DM-RS for the symbol-level PDSCH occurs in the same symbol as thefront-loaded DM-RS for slot-level scheduling, e.g., the 2^(nd), 3^(rd)or 4^(th) symbol within a slot. According to this embodiment, themaximum time gap in number of symbols from the end of front-loaded DM-RSto the beginning of the first symbol of the symbol-level PDSCH forslot-level scheduling can be specified or configured via higher layers(NR minimum system information (MSI), NR remaining minimum systeminformation (RMSI), NR system information block (SIB) or radio resourcecontrol (RRC) signaling.

In one example, the maximum time gap can be defined such that the firstsymbol of the symbol-level PDSCH occurs in the same slot (for 7-symbolslots) or in the same first half of the slot (for 14-symbol slot) as thefront-loaded DM-RS. Although NR does not use 7 symbols slots, the use of7 symbol slots may be implemented in next generation cellular standards.In another example, the maximum time gap is defined similarly, but withthe additional constraint that the first symbol of the PDSCH occurs atleast after the front-loaded slot-level DM-RS symbol. Such aconsideration is in view of support of pipelined implementation in theUE receiver to aid fast receiver processing time. In case the relativetiming constraint is not satisfied, the symbol-level PDSCH can beconfigured with DM-RS embedded within the PDSCH symbols as in one ormore of the embodiments presented in the previous sections of thisdisclosure.

If an additional DM-RS symbol (in addition to the front-loaded DM-RSsymbol) is configured in case of a 14-symbol slot case, in an example,the front-loaded DM-RS for a symbol-level PDSCH with the first symboloccurring in the second half of a 14-symbol slot can be similarlyassociated with the additional DM-RS symbol occurring within the secondhalf of the 14-symbol slot, i.e., based on the relative position of thefirst symbol of the symbol-level PDSCH and the additional DM-RS locationwithin the second half of the 14-symbol slot. Otherwise, thesymbol-level PDSCH can be configured with DM-RS embedded within thePDSCH symbols as in one or more of the embodiments presented in theprevious sections of this disclosure.

For the above embodiments, it may be necessary for the UE to buffer thereceived DM-RS symbols until the PDCCH scheduling the symbol-level PDSCHis received and decoded to determine the association to the appropriateDM-RS symbol.

Additionally, for the cases of configured additional DM-RS symbol(s), atime domain bundling for channel estimation may be configured. Forexample, a one-bit indication as to whether channel estimation may beinterpolated/extrapolated over all configured symbols or per configuredsymbols and applied only on symbols which associated with the DM-RS maybe signaled.

It is to be noted that, although localized transmission is shown in FIG.16 , a similar design concept can be straightforwardly extended to thecase when distributed transmission is employed for PDCCH and PDSCH.

A second set of embodiments relating to multiplexing schemes forcontrol/data channel and DM-RS for NR having been described above, athird embodiment relating to the activation mechanism. schedulingaspects and Synchronization Signal (SS) block numerology for multipleBWPs.

Adjusting Operating Bandwidth Capability Depending on Data Rate

According to a third set of embodiments, an activation of multiple BWPswith a same numerology is either allowed or not allowed. There appearsto be no RF power saving by activating multiple BWPs instead ofactivating one wider BWP containing the multiple BWPs. The above isbecause, for a single RF chain, the opened RF BW cannot bediscontinuous. From the perspective of configuring different slotdurations on a per symbol basis, the activation of multiple BWPs can beuseful. For instance, where one BWP has a 7-symbol slot duration, whileanother BWP has a 14-symbol slot duration, the configuration ofdifferent slot durations can be helpful to serve traffics with differentlatency requirement. For a BWP configured with longer slot durations,the PDCCH monitoring overhead can be reduced. It is to be noted that,although NR does not implement varying slot durations (the slot durationin NR being 14 symbols long at the time of the instant disclosure and NRnot encompassing a 7-symbol slot), the above regime may be useful inlater iterations of cellular standards. For a given UE, there seems tobe no use case of configuring different CP types for simultaneouslyactivated different BWPs with the same numerology, and it is expectedthat the support of multiple BWPs with same numerology would not imposesignificant burden to UE implementation.

As suggested above, an activation of multiple BWPs with same numerologymay be allowed with different slot durations. The number of BWPs withdifferent numerologies that can be simultaneously supported can be basedon the UE's capability. In the latter case, the UE may use signaling tocommunicate such capability to the gNodeB. According to one embodiment,simultaneously activated BWPs may overlap in the frequency domain, orthey may not be allowed to overlap in the frequency domain.

According to one embodiment, an activation of multiple BWPs withdifferent numerologies is allowed, regardless of whether the UE inquestion either supports or does not support different numerologies atthe same time instance. A motivating scenario favored by thesimultaneous activation of multiple BWPs with different numerologiesincludes serving URLLC traffic with wider subcarrier spacing (SCS) thanthat for eMBB traffic. As noted previously, the multiple BWPs can beoverlapping or non-overlapping in the frequency domain. If a BWP forURLLC overlaps with a BWP for eMBB, the preemption based URLLCtransmission over eMBB transmission may be employed.

An activation of multiple BWPs with different numerologies may implythat a UE has to be able to process different numerologies in the sametime instance. Supporting multiple numerologies at a given time instancerequires a UE to implement multiple FFT/IFFT and digital signalprocessing chains to process different numerologies at the same time. Asa result, RAN1 has derived an agreement in a previous meeting to theeffect that: “[i]t does not imply that it is required for UE to supportdifferent numerologies at the same Instance.” As noted previously, anumber of BWPs with different numerologies that can be simultaneouslysupported may be based on a UE's capabilities. If a UE supportsdifferent numerologies at the same time instance, multiple BWPs withdifferent numerologies can be activated by gNodeB.

However, it is also possible that multiple BWPs with differentnumerologies can be activated while a UE does not support differentnumerologies at the same instance. In such a situation, the followingoptions can be considered from a UE perspective: (1) signaling asemi-static TDM pattern of multiple BWPs to the UE; (2) using adaptiveTDM on the multiple BWPs; and; (3) using dynamic indication as betweenthe BWPs. Each of the above three options will be described in moredetail below.

According to the first option involving semi-static TDM of multipleBWPs, for a given periodicity, the semi-static TDM pattern of multipleBWPs may be signaled to the UE. At a given time instance, the UE maymonitor only the PDCCH with the corresponding numerology. Alternatively,different CORESETs in different BWPs can be configured to be monitoredwith different periodicities and time offsets with respect to a commonreference time (e.g., system frame number=0 and slot index=0). At agiven time instance, the UE then monitors only the PDCCH with thecorresponding numerology. This can be achieved by configuring the BWPindex along with the CORESET configuration as part of or separately fromthe PDCCH search space configuration. The option of semi-static TDMrepresents a simplest option out of the above three options, but may bethe least efficient.

According to the second option involving adaptive TDM of multiple BWPs,a UE monitors the PDCCH using a default BWP. If a switching command isreceived to switch among the activated BWPs, the UE then moves to thesignaled BWP for its signaling. However, if the UE has not beenscheduled over some time period in the BWP, the UE goes back to thedefault BWP. Alternatively, or additionally, the UE can be configured toperiodically monitor the default BWP, possibly with larger periodicity,by monitoring a common or UE-specific search space as a fallbackmechanism. The default BWP can be configured such that the PDCCHmonitoring overhead can be minimized.

According to the third option involving dynamic indication between themultiple BWPs, a current slot can indicate, such as via PDCCH, the BWPof the next slot for K symbols later among the set of activated BWPs.Although it is conceptually similar to activate one BWP at a time viaDCI, it can be regarded that there is no RF retuning to be performed bya UE when multiple BWPs are activated, since the UE RF BW will bealready opened up to cover the multiple BWPs. This option is the mostefficient but has the risk of lost switching command.

With respect to a scheduling of BWPs, in the case of one active DL BWPfor a given time instant, a configuration of a DL BWP may include atleast one CORESET. Where multiple BWPs are active, multiple options maybe considered according to some embodiments, including, by way ofexample, two options: (1) self-BWP scheduling; and (2) cross-BWPscheduling;

According to the first option involving self-BWP scheduling, eachCORESET is configured for each BWP, and self-BWP scheduling applies inthe sense that the PDCCH and the correspondingly scheduled PDSCH arecontained within the same BWP. An analogy is the LTE self-carrierscheduling. Self-BWP scheduling provides the simplest approach, but theUE has to monitor multiple CORESETs.

According to the second option involving cross-BWP scheduling, a CORESETmay be configured on only one BWP, and other activated BWPs do not haveCORESET at the same time instance. CORESETs in other BWPs may beconfigured with TDM of monitoring occasions. The above option impliesthat the PDCCH is monitored in only one BWP in a given time instance andPDSCH in other BWPs must be scheduled by the PDCCH sent in the BWPhaving configured CORESET. The above is similar to cross-carrierscheduling. The cross-BWP scheduling can be especially suited formultiple activated BWPs with different numerologies. The above isbecause, if the SCSs of the multiple activated BWPs are different, it isnot possible for a UE to monitor CORESETs with different SCS at the sameinstance, if the UE does not have such capability, i.e., processingmultiple numerologies at a given instance. With cross-BWP scheduling,the PDSCH in other BWPs can be scheduled by PDCCH in a monitored BWP.The UE can be configured such that a UE expects to receive PDCCH in oneBWP but not PDSCH in the same BWP. The UE does not need to monitormultiple CORESETs with different numerologies at the same time.According to one embodiment, the BWP ID can be indicated in the DCI.Cross-BWP scheduling can also be utilized for a UE with resourceallocation for PDSCH or PUSCH spanning multiple BWPs, i.e., to realize aresource allocation over aggregated BWPs. In this case, the indices ofthe aggregated BWPs, contiguous in the frequency-domain, can beindicated to the UE via the scheduling DCI, along with the resourceallocation information for each BWP. For the resource allocation, thestarting BWP and PRB index and the last allocated BWP with the last PRBindex may be indicated via the DCI, with an assumption of a contiguousresource allocation between the start and end PRBs.

This section discusses possible restrictions on NR system operationconcerning with the numerology for SS block. Regarding SS blocknumerology, if a UE supports multiple numerologies at a given timeinstance (if it has separate chains dedicated for processing the SSblock), according to one embodiment, the numerology, e.g., SCS or CPtype, for an SS block can be different from the numerology of a BWP thatmay contain in it a frequency range for the SS block. If a UE supportsonly a single numerology at a given time instance, the UE is notexpected to be scheduled during the slots containing SS blocks withdifferent numerologies. If a UE supports only a single numerology at agiven instance, the UE is not expected to be configured for a BWP havinga different numerology with respect to the numerology for the SS block.Thus, the UE is not expected to be scheduled during the slots containingSS blocks with different numerologies. In other words, the UE may notmonitor the PDCCH or receive PDSCH in those slots. In addition, the UEis not expected to be configured for a BWP having different numerologywith the numerology for SS block. In other words, the UEs that do nothave the capability to process multiple numerologies at the same timeare expected to be configured such that the numerology for BWPcontaining SS block and the numerology for SS block are the same.

Example networks and architectures that may be used to implement somedemonstrative embodiments will be shown and described with respect toFIGS. 17-24 below.

FIG. 17 illustrates an architecture of a system 1700 of a network inaccordance with some embodiments. The system 1700 is shown to include auser equipment (UE) 1701 and a UE 1702. The UEs 1701 and 1702 areillustrated as smartphones (e.g., handheld touchscreen mobile computingdevices connectable to one or more cellular networks), but may alsocomprise any mobile or non-mobile computing device, such as PersonalData Assistants (PDAs), pagers, laptop computers, desktop computers,wireless handsets, or any computing device including a wirelesscommunications interface. These UEs could include NR UEs.

In some embodiments, any of the UEs 1701 and 1702 can comprise anInternet of Things (IoT) UE, which can comprise a network access layerdesigned for low-power IoT applications utilizing short-lived UEconnections. An IoT UE can utilize technologies such asmachine-to-machine (M2M) or machine-type communications (MTC) forexchanging data with an MTC server or device via a public land mobilenetwork (PLMN), Proximity-Based Service (ProSe) or device-to-device(D2D) communication, sensor networks, or IoT networks. The M2M or MTCexchange of data may be a machine-initiated exchange of data. An IoTnetwork describes interconnecting IoT UEs, which may include uniquelyidentifiable embedded computing devices (within the Internetinfrastructure), with short-lived connections. The IoT UEs may executebackground applications (e.g., keep-alive messages, status updates,etc.) to facilitate the connections of the IoT network.

The UEs 1701 and 1702 may be configured to connect, e.g.,communicatively couple, with a radio access network (RAN) 1710—the RAN1710 may be, for example, an Evolved Universal Mobile TelecommunicationsSystem (UMTS) Terrestrial Radio Access Network (E-UTRAN), a NextGen RAN(NG RAN), or some other type of RAN. The UEs 1701 and 1702 utilizeconnections 1703 and 1704, respectively, each of which comprises aphysical communications interface or layer (discussed in further detailbelow); in this example, the connections 1703 and 1704 are illustratedas an air interface to enable communicative coupling, and can beconsistent with cellular communications protocols, such as a GlobalSystem for Mobile Communications (GSM) protocol, a code-divisionmultiple access (CDMA) network protocol, a Push-to-Talk (PTT) protocol,a PTT over Cellular (POC) protocol, a Universal MobileTelecommunications System (UMTS) protocol, a 3GPP Long Term Evolution(LTE) protocol, a fifth generation (5G) protocol, a New Radio (NR)protocol, and the like.

In this embodiment, the UEs 1701 and 1702 may further directly exchangecommunication data via a ProSe interface 1705. The ProSe interface 1705may alternatively be referred to as a sidelink interface comprising oneor more logical channels, including but not limited to a PhysicalSidelink Control Channel (PSCCH), a Physical Sidelink Shared Channel(PSSCH), a Physical Sidelink Discovery Channel (PSDCH), and a PhysicalSidelink Broadcast Channel (PSBCH).

The UE 1702 is shown to be configured to access an access point (AP)1706 via connection 1707. The connection 1707 can comprise a localwireless connection, such as a connection consistent with any IEEE802.11 protocol, wherein the AP 1706 would comprise a wireless fidelity(WiFi®) router. In this example, the AP 1706 is shown to be connected tothe Internet without connecting to the core network of the wirelesssystem (described in further detail below).

The RAN 1710 can include one or more access nodes that enable theconnections 1703 and 1704. These access nodes (ANs) can be referred toas base stations (BSs), NodeBs, evolved NodeBs (eNBs), next GenerationNodeBs (gNB), RAN nodes, and so forth, and can comprise ground stations(e.g., terrestrial access points) or satellite stations providingcoverage within a geographic area (e.g., a cell). The RAN 1710 mayinclude one or more RAN nodes for providing macrocells, e.g., macro RANnode 1711, and one or more RAN nodes for providing femtocells orpicocells (e.g., cells having smaller coverage areas, smaller usercapacity, or higher bandwidth compared to macrocells), e.g., low power(LP) RAN node 1712.

Any of the RAN nodes 1711 and 1712 can terminate the air interfaceprotocol and can be the first point of contact for the UEs 1701 and1702. In some embodiments, any of the RAN nodes 1711 and 1712 canfulfill various logical functions for the RAN 1710 including, but notlimited to, radio network controller (RNC) functions such as radiobearer management, uplink and downlink dynamic radio resource managementand data packet scheduling, and mobility management.

In accordance with some embodiments, the UEs 1701 and 1702 can beconfigured to communicate using Orthogonal Frequency-DivisionMultiplexing (OFDM) communication signals with each other or with any ofthe RAN nodes 1711 and 1712 over a multicarrier communication channel inaccordance various communication techniques, such as, but not limitedto, an Orthogonal Frequency-Division Multiple Access (OFDMA)communication technique (e.g., for downlink communications) or a SingleCarrier Frequency Division Multiple Access (SC-FDMA) communicationtechnique (e.g., for uplink and ProSe or sidelink communications),although the scope of the embodiments is not limited in this respect.The OFDM signals can comprise a plurality of orthogonal subcarriers.

In some embodiments, a downlink resource grid can be used for downlinktransmissions from any of the RAN nodes 1711 and 1712 to the UEs 1701and 1702, while uplink transmissions can utilize similar techniques. Thegrid can be a time-frequency grid, called a resource grid ortime-frequency resource grid, which is the physical resource in thedownlink in each slot. Such a time-frequency plane representation is acommon practice for OFDM systems, which makes it intuitive for radioresource allocation. Each column and each row of the resource gridcorresponds to one OFDM symbol and one OFDM subcarrier, respectively.The duration of the resource grid in the time domain corresponds to oneslot in a radio frame. The smallest time-frequency unit in a resourcegrid is denoted as a resource element. Each resource grid comprises anumber of resource blocks, which describe the mapping of certainphysical channels to resource elements. Each resource block comprises acollection of resource elements; in the frequency domain, this mayrepresent the smallest quantity of resources that currently can beallocated. There are several different physical downlink channels thatare conveyed using such resource blocks.

The physical downlink shared channel (PDSCH) may carry user data andhigher-layer signaling to the UEs 1701 and 1702. The physical downlinkcontrol channel (PDCCH) may carry information about the transport formatand resource allocations related to the PDSCH channel, among otherthings. It may also inform the UEs 1701 and 1702 about the transportformat, resource allocation, and H-ARQ (Hybrid Automatic Repeat Request)information related to the uplink shared channel. Typically, downlinkscheduling (assigning control and shared channel resource blocks to theUE 102 within a cell) may be performed at any of the RAN nodes 1711 and1712 based on channel quality information fed back from any of the UEs1701 and 1702. The downlink resource assignment information may be senton the PDCCH used for (e.g., assigned to) each of the UEs 1701 and 1702.

The PDCCH may use control channel elements (CCEs) to convey the controlinformation. Before being mapped to resource elements, the PDCCHcomplex-valued symbols may first be organized into quadruplets, whichmay then be permuted using a sub-block interleaver for rate matching.Each PDCCH may be transmitted using one or more of these CCEs, whereeach CCE may correspond to nine sets of four physical resource elementsknown as resource element groups (REGs). Four Quadrature Phase ShiftKeying (QPSK) symbols may be mapped to each REG. The PDCCH can betransmitted using one or more CCEs, depending on the size of thedownlink control information (DCI) and the channel condition. There canbe four or more different PDCCH formats defined in LTE with differentnumbers of CCEs (e.g., aggregation level, L=1, 2, 4, or 8).

Some embodiments may use concepts for resource allocation for controlchannel information that are an extension of the above-describedconcepts. For example, some embodiments may utilize an enhanced physicaldownlink control channel (EPDCCH) that uses PDSCH resources for controlinformation transmission. The EPDCCH may be transmitted using one ormore enhanced the control channel elements (ECCEs). Similar to above,each ECCE may correspond to nine sets of four physical resource elementsknown as an enhanced resource element groups (EREGs). An ECCE may haveother numbers of EREGs in some situations.

The RAN 1710 is shown to be communicatively coupled to a core network(CN) 1720—via an S1 interface 1713. In embodiments, the CN 1720 may bean evolved packet core (EPC) network, a NextGen Packet Core (NPC)network, or some other type of CN. In this embodiment the S1 interface1713 is split into two parts: the S1-U interface 1714, which carriestraffic data between the RAN nodes 1711 and 1712 and the serving gateway(S-GW) 1722, and the S1-mobility management entity (MME) interface 1715,which is a signaling interface between the RAN nodes 1711 and 1712 andMMEs 1721.

In this embodiment, the CN 1720 comprises the MMEs 1721, the S-GW 1722,the Packet Data Network (PDN) Gateway (P-GW) 1723, and a home subscriberserver (HSS) 1724. The MMEs 1721 may be similar in function to thecontrol plane of legacy Serving General Packet Radio Service (GPRS)Support Nodes (SGSN). The MMEs 1721 may manage mobility aspects inaccess such as gateway selection and tracking area list management. TheHSS 1724 may comprise a database for network users, includingsubscription-related information to support the network entities'handling of communication sessions. The CN 1720 may comprise one orseveral HSSs 1724, depending on the number of mobile subscribers, on thecapacity of the equipment, on the organization of the network, etc. Forexample, the HSS 1724 can provide support for routing/roaming,authentication, authorization, naming/addressing resolution, locationdependencies, etc.

The S-GW 1722 may terminate the S1 interface 1713 towards the RAN 1710,and routes data packets between the RAN 1710 and the CN 1720. Inaddition, the S-GW 1722 may be a local mobility anchor point forinter-RAN node handovers and also may provide an anchor for inter-3GPPmobility. Other responsibilities may include lawful intercept, charging,and some policy enforcement.

The P-GW 1723 may terminate an SGi interface toward a PDN. The P-GW 1723may route data packets between the EPC network 1723 and externalnetworks such as a network including the application server 1730(alternatively referred to as application function (AF)) via an InternetProtocol (IP) interface 1725. Generally, the application server 1730 maybe an element offering applications that use IP bearer resources withthe core network (e.g., UMTS Packet Services (PS) domain, LTE PS dataservices, etc.). In this embodiment, the P-GW 1723 is shown to becommunicatively coupled to an application server 1730 via an IPcommunications interface 1725. The application server 1730 can also beconfigured to support one or more communication services (e.g.,Voice-over-Internet Protocol (VoIP) sessions, PTT sessions, groupcommunication sessions, social networking services, etc.) for the UEs1701 and 1702 via the CN 1720.

The P-GW 1723 may further be a node for policy enforcement and chargingdata collection. Policy and Charging Enforcement Function (PCRF) 1726 isthe policy and charging control element of the CN 1720. In a non-roamingscenario, there may be a single PCRF in the Home Public Land MobileNetwork (HPLMN) associated with a UE's Internet Protocol ConnectivityAccess Network (IP-CAN) session. In a roaming scenario with localbreakout of traffic, there may be two PCRFs associated with a UE'sIP-CAN session: a Home PCRF (H-PCRF) within a HPLMN and a Visited PCRF(V-PCRF) within a Visited Public Land Mobile Network (VPLMN). The PCRF1726 may be communicatively coupled to the application server 1730 viathe P-GW 1723. The application server 1730 may signal the PCRF 1726 toindicate a new service flow and select the appropriate Quality ofService (QoS) and charging parameters. The PCRF 1726 may provision thisrule into a Policy and Charging Enforcement Function (PCEF) (not shown)with the appropriate traffic flow template (TFT) and QoS class ofidentifier (QCI), which commences the QoS and charging as specified bythe application server 1730.

FIG. 18 illustrates example components of a device 1800 in accordancewith some embodiments. In some embodiments, the device 1800 may includeapplication processing circuitry 1802, baseband processing circuitry1804, Radio Frequency (RF) circuitry 1806, front-end module (FEM)circuitry 1808, one or more antennas 1810, and power managementcircuitry (PMC) 1812 coupled together at least as shown. The componentsof the illustrated device 1800 may be included in a UE or a RAN node. Insome embodiments, the device 1800 may include less elements (e.g., a RANnode may not utilize application processing circuitry 1802, and insteadinclude a processor/controller to process IP data received from an EPC).In some embodiments, the device 1800 may include additional elementssuch as, for example, memory/storage, display, camera, sensor, orinput/output (I/O) interface. In other embodiments, the componentsdescribed below may be included in more than one device (e.g., saidcircuitries may be separately included in more than one device forCloud-RAN (C-RAN) implementations).

The application processing circuitry 1802 may include one or moreapplication processors. For example, the application processingcircuitry 1802 may include circuitry such as, but not limited to, one ormore single-core or multi-core processors. The processor(s) may includeany combination of general-purpose processors and dedicated processors(e.g., graphics processors, application processors, etc.). Theprocessors may be coupled with or may include memory/storage and may beconfigured to execute instructions stored in the memory/storage toenable various applications or operating systems to run on the device1800. In some embodiments, processors of application processingcircuitry 1802 may process IP data packets received from an EPC.

The baseband processing circuitry 1804 may include circuitry such as,but not limited to, one or more single-core or multi-core processors.The baseband processing circuitry 1804 may include one or more basebandprocessors or control logic to process baseband signals received from areceive signal path of the RF circuitry 1806 and to generate basebandsignals for a transmit signal path of the RF circuitry 1806. Basebandprocessing circuitry 1804 may interface with the application processingcircuitry 1802 for generation and processing of the baseband signals andfor controlling operations of the RF circuitry 1806. For example, insome embodiments, the baseband processing circuitry 1804 may include athird generation (3G) baseband processor 1804A, a fourth generation (4G)baseband processor 1804B, a fifth generation (5G) baseband processor1804C, or other baseband processor(s) 1804D for other existinggenerations, generations in development or to be developed in the future(e.g., second generation (2G), sixth generation (6G), etc.). Thebaseband processing circuitry 1804 (e.g., one or more of basebandprocessors 1804A-D) may handle various radio control functions thatenable communication with one or more radio networks via the RFcircuitry 1806. In other embodiments, some or all of the functionalityof baseband processors 1804A-D may be included in modules stored in thememory 1804G and executed via a Central Processing Unit (CPU) 1804E. Theradio control functions may include, but are not limited to, signalmodulation/demodulation, encoding/decoding, radio frequency shifting,etc. In some embodiments, modulation/demodulation circuitry of thebaseband processing circuitry 1804 may include Fast-Fourier Transform(FFT), precoding, or constellation mapping/demapping functionality. Insome embodiments, encoding/decoding circuitry of the baseband processingcircuitry 1804 may include convolution, tail-biting convolution, turbo,Viterbi, or Low-Density Parity Check (LDPC) encoder/decoderfunctionality. Embodiments of modulation/demodulation andencoder/decoder functionality are not limited to these examples and mayinclude other suitable functionality in other embodiments. The basebandprocessing circuitry may cause transmission of signals by encodingbaseband signals for further processing and transmission by way of theRF circuitry and antennas.

In some embodiments, the baseband processing circuitry 1804 may includeone or more audio digital signal processor(s) (DSP) 1804F. The audioDSP(s) 1804F may be include elements for compression/decompression andecho cancellation and may include other suitable processing elements inother embodiments. Components of the baseband processing circuitry maybe suitably combined in a single chip, a single chipset, or disposed ona same circuit board in some embodiments. In some embodiments, some orall of the constituent components of the baseband circuitry 1804 and theapplication processing circuitry 1802 may be implemented together suchas, for example, on a system on a chip (SOC).

In some embodiments, the baseband processing circuitry 1804 may providefor communication compatible with one or more radio technologies. Forexample, in some embodiments, the baseband processing circuitry 1804 maysupport communication with an evolved universal terrestrial radio accessnetwork (EUTRAN) or other wireless metropolitan area networks (WMAN), awireless local area network (WLAN), a wireless personal area network(WPAN). Embodiments in which the baseband processing circuitry 1804 isconfigured to support radio communications of more than one wirelessprotocol may be referred to as multi-mode baseband processing circuitry.

RF circuitry 1806 may enable communication with wireless networks usingmodulated electromagnetic radiation through a non-solid medium. Invarious embodiments, the RF circuitry 1806 may include switches,filters, amplifiers, etc. to facilitate the communication with thewireless network. RF circuitry 1806 may include a receive signal pathwhich may include circuitry to down-convert RF signals received from theFEM circuitry 1808 and provide baseband signals to the basebandprocessing circuitry 1804. RF circuitry 1806 may also include a transmitsignal path which may include circuitry to up-convert baseband signalsprovided by the baseband processing circuitry 1804 and provide RF outputsignals to the FEM circuitry 1808 for transmission.

In some embodiments, the receive signal path of the RF circuitry 1806may include mixer circuitry 1806 a, amplifier circuitry 1806 b andfilter circuitry 1806 c. In some embodiments, the transmit signal pathof the RF circuitry 1806 may include filter circuitry 1806 c and mixercircuitry 1806 a. RF circuitry 1806 may also include synthesizercircuitry 1806 d for synthesizing a frequency for use by the mixercircuitry 1806 a of the receive signal path and the transmit signalpath. In some embodiments, the mixer circuitry 1806 a of the receivesignal path may be configured to down-convert RF signals received fromthe FEM circuitry 1808 based on the synthesized frequency provided bysynthesizer circuitry 1806 d. The amplifier circuitry 1806 b may beconfigured to amplify the down-converted signals and the filtercircuitry 1806 c may be a low-pass filter (LPF) or band-pass filter(BPF) configured to remove unwanted signals from the down-convertedsignals to generate output baseband signals. Output baseband signals maybe provided to the baseband processing circuitry 1804 for furtherprocessing. In some embodiments, the output baseband signals may bezero-frequency baseband signals, although this is not a requirement. Insome embodiments, mixer circuitry 1806 a of the receive signal path maycomprise passive mixers, although the scope of the embodiments is notlimited in this respect.

In some embodiments, the mixer circuitry 1806 a of the transmit signalpath may be configured to up-convert input baseband signals based on thesynthesized frequency provided by the synthesizer circuitry 1806 d togenerate RF output signals for the FEM circuitry 1808. The basebandsignals may be provided by the baseband processing circuitry 1804 andmay be filtered by filter circuitry 1806 c.

In some embodiments, the mixer circuitry 1806 a of the receive signalpath and the mixer circuitry 1806 a of the transmit signal path mayinclude two or more mixers and may be arranged for quadraturedownconversion and upconversion, respectively. In some embodiments, themixer circuitry 1806 a of the receive signal path and the mixercircuitry 1806 a of the transmit signal path may include two or moremixers and may be arranged for image rejection (e.g., Hartley imagerejection). In some embodiments, the mixer circuitry 1806 a of thereceive signal path and the mixer circuitry 1806 a may be arranged fordirect downconversion and direct upconversion, respectively. In someembodiments, the mixer circuitry 1806 a of the receive signal path andthe mixer circuitry 1806 a of the transmit signal path may be configuredfor super-heterodyne operation.

In some embodiments, the output baseband signals and the input basebandsignals may be analog baseband signals, although the scope of theembodiments is not limited in this respect. In some alternateembodiments, the output baseband signals and the input baseband signalsmay be digital baseband signals. In these alternate embodiments, the RFcircuitry 1806 may include analog-to-digital converter (ADC) anddigital-to-analog converter (DAC) circuitry and the baseband processingcircuitry 1804 may include a digital baseband interface to communicatewith the RF circuitry 1806.

In some dual-mode embodiments, a separate radio IC circuitry may beprovided for processing signals for each spectrum, although the scope ofthe embodiments is not limited in this respect.

In some embodiments, the synthesizer circuitry 1806 d may be afractional-N synthesizer or a fractional N/N+1 synthesizer, although thescope of the embodiments is not limited in this respect as other typesof frequency synthesizers may be suitable. For example, synthesizercircuitry 1806 d may be a delta-sigma synthesizer, a frequencymultiplier, or a synthesizer comprising a phase-locked loop with afrequency divider.

The synthesizer circuitry 1806 d may be configured to synthesize anoutput frequency for use by the mixer circuitry 1806 a of the RFcircuitry 1806 based on a frequency input and a divider control input.In some embodiments, the synthesizer circuitry 1806 d may be afractional N/N+1 synthesizer.

In some embodiments, frequency input may be provided by avoltage-controlled oscillator (VCO), although that is not a requirement.Divider control input may be provided by either the baseband processingcircuitry 1804 or the applications processor 1802 depending on thedesired output frequency. In some embodiments, a divider control input(e.g., N) may be determined from a look-up table based on a channelindicated by the applications processor 1802.

Synthesizer circuitry 1806 d of the RF circuitry 1806 may include adivider, a delay-locked loop (DLL), a multiplexer and a phaseaccumulator. In some embodiments, the divider may be a dual modulusdivider (DMD) and the phase accumulator may be a digital phaseaccumulator (DPA). In some embodiments, the DMD may be configured todivide the input signal by either N or N+1 (e.g., based on a carry out)to provide a fractional division ratio. In some example embodiments, theDLL may include a set of cascaded, tunable, delay elements, a phasedetector, a charge pump and a D-type flip-flop. In these embodiments,the delay elements may be configured to break a VCO period up into Ndequal packets of phase, where Nd is the number of delay elements in thedelay line. In this way, the DLL provides negative feedback to helpensure that the total delay through the delay line is one VCO cycle.

In some embodiments, synthesizer circuitry 1806 d may be configured togenerate a carrier frequency as the output frequency, while in otherembodiments, the output frequency may be a multiple of the carrierfrequency (e.g., twice the carrier frequency, four times the carrierfrequency) and used in conjunction with quadrature generator and dividercircuitry to generate multiple signals at the carrier frequency withmultiple different phases with respect to each other. In someembodiments, the output frequency may be a LO frequency (fLO). In someembodiments, the RF circuitry 1806 may include an IQ/polar converter.

FEM circuitry 1808 may include a receive signal path which may includecircuitry configured to operate on RF signals received from one or moreantennas 1810, amplify the received signals and provide the amplifiedversions of the received signals to the RF circuitry 1806 for furtherprocessing. FEM circuitry 1808 may also include a transmit signal pathwhich may include circuitry configured to amplify signals fortransmission provided by the RF circuitry 1806 for transmission by oneor more of the one or more antennas 1810. In various embodiments, theamplification through the transmit or receive signal paths may be donesolely in the RF circuitry 1806, solely in the FEM 1808, or in both theRF circuitry 1806 and the FEM 1808.

In some embodiments, the FEM circuitry 1808 may include a TX/RX switchto switch between transmit mode and receive mode operation. The FEMcircuitry may include a receive signal path and a transmit signal path.The receive signal path of the FEM circuitry may include an LNA toamplify received RF signals and provide the amplified received RFsignals as an output (e.g., to the RF circuitry 1806). The transmitsignal path of the FEM circuitry 1808 may include a power amplifier (PA)to amplify input RF signals (e.g., provided by RF circuitry 1806), andone or more filters to generate RF signals for subsequent transmission(e.g., by one or more of the one or more antennas 1810).

In some embodiments, the PMC 1812 may manage power provided to thebaseband processing circuitry 1804. In particular, the PMC 1812 maycontrol power-source selection, voltage scaling, battery charging, orDC-to-DC conversion. The PMC 1812 may often be included when the device1800 is capable of being powered by a battery, for example, when thedevice is included in a UE. The PMC 1812 may increase the powerconversion efficiency while providing desirable implementation size andheat dissipation characteristics.

While FIG. 18 shows the PMC 1812 coupled only with the basebandprocessing circuitry 1804. However, in other embodiments, the PMC 1812may be additionally or alternatively coupled with, and perform similarpower management operations for, other components such as, but notlimited to, application processing circuitry 1802, RF circuitry 1806, orFEM 1808.

In some embodiments, the PMC 1812 may control, or otherwise be part of,various power saving mechanisms of the device 1800. For example, if thedevice 1800 is in an RRC_Connected state, where it is still connected tothe RAN node as it expects to receive traffic shortly, then it may entera state known as Discontinuous Reception Mode (DRX) after a period ofinactivity. During this state, the device 1800 may power down for briefintervals of time and thus save power.

If there is no data traffic activity for an extended period of time,then the device 1800 may transition off to an RRC_Idle state, where itdisconnects from the network and does not perform operations such aschannel quality feedback, handover, etc. The device 1800 goes into avery low power state and it performs paging where again it periodicallywakes up to listen to the network and then powers down again. The device1800 may not receive data in this state, in order to receive data, itmust transition back to RRC_Connected state.

An additional power saving mode may allow a device to be unavailable tothe network for periods longer than a paging interval (ranging fromseconds to a few hours). During this time, the device is totallyunreachable to the network and may power down completely. Any data sentduring this time incurs a large delay and it is assumed the delay isacceptable.

Processors of the application processing circuitry 1802 and processorsof the baseband processing circuitry 1804 may be used to executeelements of one or more instances of a protocol stack. For example,processors of the baseband processing circuitry 1804, alone or incombination, may be used execute Layer 3, Layer 2, or Layer 1functionality, while processors of the application processing circuitry1804 may utilize data (e.g., packet data) received from these layers andfurther execute Layer 4 functionality (e.g., transmission communicationprotocol (TCP) and user datagram protocol (UDP) layers). As referred toherein, Layer 3 may comprise a radio resource control (RRC) layer,described in further detail below. As referred to herein, Layer 2 maycomprise a medium access control (MAC) layer, a radio link control (RLC)layer, and a packet data convergence protocol (PDCP) layer, described infurther detail below. As referred to herein, Layer 1 may comprise aphysical (PHY) layer of a UE/RAN node, described in further detailbelow.

FIG. 19 illustrates example interfaces of baseband processing circuitryin accordance with some embodiments. As discussed above, the basebandprocessing circuitry 1804 of FIG. 18 may comprise processors 1804A-XT04Eand a memory 1804G utilized by said processors. Each of the processors1804A-XT04E may include a memory interface, 1904A-XU04E, respectively,to send/receive data to/from the memory 1804G.

The baseband processing circuitry 1804 may further include one or moreinterfaces to communicatively couple to other circuitries/devices, suchas a memory interface 1912 (e.g., an interface to send/receive datato/from memory external to the baseband processing circuitry 1804), anapplication processing circuitry interface 1914 (e.g., an interface tosend/receive data to/from the application processing circuitry 1802 ofFIG. 18 ), an RF circuitry interface 1916 (e.g., an interface tosend/receive data to/from RF circuitry 1806 of FIG. 18 ), a wirelesshardware connectivity interface 1918 (e.g., an interface to send/receivedata to/from Near Field Communication (NFC) components, Bluetooth®components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and othercommunication components), and a power management interface 1920 (e.g.,an interface to send/receive power or control signals to/from the PMC1812.

FIG. 20 is an illustration of a control plane protocol stack inaccordance with some embodiments. In this embodiment, a control plane2000 is shown as a communications protocol stack between the UE 1701 (oralternatively, the UE 1702), the RAN node 1711 (or alternatively, theRAN node 1712), and the MME 1721.

The PHY layer 2001 may transmit or receive information used by the MAClayer 2002 over one or more air interfaces. The PHY layer 2001 mayfurther perform link adaptation or adaptive modulation and coding (AMC),power control, cell search (e.g., for initial synchronization andhandover purposes), and other measurements used by higher layers, suchas the RRC layer 2005. The PHY layer 2001 may still further performerror detection on the transport channels, forward error correction(FEC) coding/decoding of the transport channels, modulation/demodulationof physical channels, interleaving, rate matching, mapping onto physicalchannels, and Multiple Input Multiple Output (MIMO) antenna processing.

The MAC layer 2002 may perform mapping between logical channels andtransport channels, multiplexing of MAC service data units (SDUs) fromone or more logical channels onto transport blocks (TB) to be deliveredto PHY via transport channels, de-multiplexing MAC SDUs to one or morelogical channels from transport blocks (TB) delivered from the PHY viatransport channels, multiplexing MAC SDUs onto TBs, schedulinginformation reporting, error correction through hybrid automatic repeatrequest (HARQ), and logical channel prioritization.

The RLC layer 2003 may operate in a plurality of modes of operation,including: Transparent Mode (TM), Unacknowledged Mode (UM), andAcknowledged Mode (AM). The RLC layer 2003 may execute transfer of upperlayer protocol data units (PDUs), error correction through automaticrepeat request (ARQ) for AM data transfers, and concatenation,segmentation and reassembly of RLC SDUs for UM and AM data transfers.The RLC layer 2003 may also execute re-segmentation of RLC data PDUs forAM data transfers, reorder RLC data PDUs for UM and AM data transfers,detect duplicate data for UM and AM data transfers, discard RLC SDUs forUM and AM data transfers, detect protocol errors for AM data transfers,and perform RLC re-establishment.

The PDCP layer 2004 may execute header compression and decompression ofIP data, maintain PDCP Sequence Numbers (SNs), perform in-sequencedelivery of upper layer PDUs at re-establishment of lower layers,eliminate duplicates of lower layer SDUs at re-establishment of lowerlayers for radio bearers mapped on RLC AM, cipher and decipher controlplane data, perform integrity protection and integrity verification ofcontrol plane data, control timer-based discard of data, and performsecurity operations (e.g., ciphering, deciphering, integrity protection,integrity verification, etc.).

The main services and functions of the RRC layer 2005 may includebroadcast of system information (e.g., included in Master InformationBlocks (MIBs) or System Information Blocks (SIBs) related to thenon-access stratum (NAS)), broadcast of system information related tothe access stratum (AS), paging, establishment, maintenance and releaseof an RRC connection between the UE and E-UTRAN (e.g., RRC connectionpaging, RRC connection establishment, RRC connection modification, andRRC connection release), establishment, configuration, maintenance andrelease of point to point Radio Bearers, security functions includingkey management, inter radio access technology (RAT) mobility, andmeasurement configuration for UE measurement reporting. Said MIBs andSIBs may comprise one or more information elements (IEs), which may eachcomprise individual data fields or data structures.

The UE 1701 and the RAN node 1711 may utilize a Uu interface (e.g., anLTE-Uu interface) to exchange control plane data via a protocol stackcomprising the PHY layer 2001, the MAC layer 2002, the RLC layer 2003,the PDCP layer 2004, and the RRC layer 2005.

The non-access stratum (NAS) protocols 2006 form the highest stratum ofthe control plane between the UE 1701 and the MME 1721. The NASprotocols 2006 support the mobility of the UE 1701 and the sessionmanagement procedures to establish and maintain IP connectivity betweenthe UE 1701 and the P-GW 1723.

The S1 Application Protocol (S1-AP) layer 2015 may support the functionsof the S1 interface and comprise Elementary Procedures (EPs). An EP is aunit of interaction between the RAN node 1711 and the CN 1720. The S1-APlayer services may comprise two groups: UE-associated services and nonUE-associated services. These services perform functions including, butnot limited to: E-UTRAN Radio Access Bearer (E-RAB) management, UEcapability indication, mobility, NAS signaling transport, RANInformation Management (RIM), and configuration transfer.

The Stream Control Transmission Protocol (SCTP) layer (alternativelyreferred to as the SCTP/IP layer) 2014 may ensure reliable delivery ofsignaling messages between the RAN node 1711 and the MME 1721 based, inpart, on the IP protocol, supported by the IP layer 2013. The L2 layer2012 and the L1 layer 2011 may refer to communication links (e.g., wiredor wireless) used by the RAN node and the MME to exchange information.

The RAN node 1711 and the MME 1721 may utilize an S1-MME interface toexchange control plane data via a protocol stack comprising the L1 layer2011, the L2 layer 2012, the IP layer 2013, the SCTP layer 2014, and theS1-AP layer 2015.

FIG. 21 is an illustration of a user plane protocol stack in accordancewith some embodiments. In this embodiment, a user plane 2100 is shown asa communications protocol stack between the UE 1701 (or alternatively,the UE 1702), the RAN node 1711 (or alternatively, the RAN node 1712),the S-GW 1722, and the P-GW 1723. The user plane 2100 may utilize atleast some of the same protocol layers as the control plane 2000. Forexample, the UE 1701 and the RAN node 1711 may utilize a Uu interface(e.g., an LTE-Uu interface) to exchange user plane data via a protocolstack comprising the PHY layer 2001, the MAC layer 2002, the RLC layer2003, the PDCP layer 2004.

The General Packet Radio Service (GPRS) Tunneling Protocol for the userplane (GTP-U) layer 2104 may be used for carrying user data within theGPRS core network and between the radio access network and the corenetwork. The user data transported can be packets in any of IPv4, IPv6,or PPP formats, for example. The UDP and IP security (UDP/IP) layer 2103may provide checksums for data integrity, port numbers for addressingdifferent functions at the source and destination, and encryption andauthentication on the selected data flows. The RAN node 1711 and theS-GW 1722 may utilize an S1-U interface to exchange user plane data viaa protocol stack comprising the L1 layer 2011, the L2 layer 2012, theUDP/IP layer 2103, and the GTP-U layer 2104. The S-GW 1722 and the P-GW1723 may utilize an S5/S8a interface to exchange user plane data via aprotocol stack comprising the L1 layer 2011, the L2 layer 2012, theUDP/IP layer 2103, and the GTP-U layer 2104. As discussed above withrespect to FIG. 20 , NAS protocols support the mobility of the UE 1701and the session management procedures to establish and maintain IPconnectivity between the UE 1701 and the P-GW 1723.

FIG. 22 illustrates components of a core network in accordance with someembodiments. The components of the CN 1720 may be implemented in onephysical node or separate physical nodes including components to readand execute instructions from a machine-readable or computer-readablemedium (e.g., a non-transitory machine-readable storage medium). In someembodiments, Network Functions Virtualization (NFV) is utilized tovirtualize any or all of the above described network node functions viaexecutable instructions stored in one or more computer readable storagemediums (described in further detail below). A logical instantiation ofthe CN 1720 may be referred to as a network slice 2201. A logicalinstantiation of a portion of the CN 1720 may be referred to as anetwork sub-slice 2202 (e.g., the network sub-slice 2202 is shown toinclude the PGW 1723 and the PCRF 1726).

NFV architectures and infrastructures may be used to virtualize one ormore network functions, alternatively performed by proprietary hardware,onto physical resources comprising a combination of industry-standardserver hardware, storage hardware, or switches. In other words, NFVsystems can be used to execute virtual or reconfigurable implementationsof one or more EPC components/functions.

FIG. 23 is a block diagram illustrating components, according to someexample embodiments, of a system 2300 to support NFV. The system 2300 isillustrated as including a virtualized infrastructure manager (VIM)2302, a network function virtualization infrastructure (NFVI) 2304, aVNF manager (VNFM) 2306, virtualized network functions (VNFs) 2308, anelement manager (EM) 2310, an NFV Orchestrator (NFVO) 2312, and anetwork manager (NM) 2314.

The VIM 2302 manages the resources of the NFVI 2304. The NFVI 2304 caninclude physical or virtual resources and applications (includinghypervisors) used to execute the system 2300. The VIM 2302 may managethe life cycle of virtual resources with the NFVI 2304 (e.g., creation,maintenance, and tear down of virtual machines (VMs) associated with oneor more physical resources), track VM instances, track performance,fault and security of VM instances and associated physical resources,and expose VM instances and associated physical resources to othermanagement systems.

The VNFM 2306 may manage the VNFs 2308. The VNFs 2308 may be used toexecute EPC components/functions. The VNFM 2306 may manage the lifecycle of the VNFs 2308 and track performance, fault and security of thevirtual aspects of VNFs 2308. The EM 2310 may track the performance,fault and security of the functional aspects of VNFs 2308. The trackingdata from the VNFM 2306 and the EM 2310 may comprise, for example,performance measurement (PM) data used by the VIM 2302 or the NFVI 2304.Both the VNFM 2306 and the EM 2310 can scale up/down the quantity ofVNFs of the system 2300.

The NFVO 2312 may coordinate, authorize, release and engage resources ofthe NFVI 2304 in order to provide the requested service (e.g., toexecute an EPC function, component, or slice). The NM 2314 may provide apackage of end-user functions with the responsibility for the managementof a network, which may include network elements with VNFs,non-virtualized network functions, or both (management of the VNFs mayoccur via the EM 2310).

FIG. 24 is a block diagram illustrating components, according to someexample embodiments, able to read instructions from a machine-readableor computer-readable medium (e.g., a non-transitory machine-readablestorage medium) and perform any one or more of the methodologiesdiscussed herein. Specifically, FIG. 24 shows a diagrammaticrepresentation of hardware resources 2400 including one or moreprocessors (or processor cores) 2410, one or more memory/storage devices2420, and one or more communication resources 2430, each of which may becommunicatively coupled via a bus 2440. For embodiments where nodevirtualization (e.g., NFV) is utilized, a hypervisor 2402 may beexecuted to provide an execution environment for one or more networkslices/sub-slices to utilize the hardware resources 2400

The processors 2410 (e.g., a central processing unit (CPU), a reducedinstruction set computing (RISC) processor, a complex instruction setcomputing (CISC) processor, a graphics processing unit (GPU), a digitalsignal processor (DSP) such as a baseband processor, an applicationspecific integrated circuit (ASIC), a radio-frequency integrated circuit(RFIC), another processor, or any suitable combination thereof) mayinclude, for example, a processor 2412 and a processor 2414.

The memory/storage devices 2420 may include main memory, disk storage,or any suitable combination thereof. The memory/storage devices 2420 mayinclude, but are not limited to any type of volatile or non-volatilememory such as dynamic random access memory (DRAM), static random-accessmemory (SRAM), erasable programmable read-only memory (EPROM),electrically erasable programmable read-only memory (EEPROM), Flashmemory, solid-state storage, etc.

The communication resources 2430 may include interconnection or networkinterface components or other suitable devices to communicate with oneor more peripheral devices 2404 or one or more databases 2406 via anetwork 2408. For example, the communication resources 2430 may includewired communication components (e.g., for coupling via a UniversalSerial Bus (USB)), cellular communication components, NFC components,Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components,and other communication components.

Instructions 2450 may comprise software, a program, an application, anapplet, an app, or other executable code for causing at least any of theprocessors 2410 to perform any one or more of the methodologiesdiscussed herein. The instructions 2450 may reside, completely orpartially, within at least one of the processors 2410 (e.g., within theprocessor's cache memory), the memory/storage devices 2420, or anysuitable combination thereof. Furthermore, any portion of theinstructions 2450 may be transferred to the hardware resources 2400 fromany combination of the peripheral devices 2404 or the databases 2406.Accordingly, the memory of processors 2410, the memory/storage devices2420, the peripheral devices 2404, and the databases 2406 are examplesof computer-readable and machine-readable media.

Reference is now made to FIG. 25 , which depicts a flow chart of amethod 2500 according to some embodiments, the method to take place atan apparatus of a UE. At operation 2502, the method includes processinga physical downlink control channel (PDCCH) from a NR gNodeB, the PDCCHincluding downlink control information (DCI) indicating information onscheduled resources for a data transmission to or from the UE, the datatransmission to occupy one or multiple ones of a plurality of BWPsconfigured by the gNodeB. At operation 2504, the method includesprocessing the data transmission based on the DCI. At operation 2506,the method includes determining a cross numerology scheduling by thegNodeB by processing information in the PDCCH, the PDCCH on a BWP of theplurality of BWPs that has a numerology different from a numerology ofsaid one or multiple ones of a plurality of BWPs for the datatransmission, the PDCCH transmitted at a time instance different from atime instance for the data transmission. At operation 2508, the methodincludes decoding information in at least one of the DCI or higher layersignaling to determine a BWP index for the BWP associated with thePDSCH, and switching from a BWP of the PDCCH to a BWP indicated by theBWP index for the data transmission.

In some embodiments, the electronic device(s), network(s), system(s),chip(s) or component(s), or portions or implementations thereof, ofFigures herein may be configured to perform one or more processes,techniques, or methods as described herein, or portions thereof.

EXAMPLES

Example 1 includes an apparatus of a New Radio (NR) gNodeB, theapparatus including a memory storing instructions, and processingcircuitry to execute the instructions to: configure a plurality ofbandwidth parts (BWPs) associated with respective numerologies;determine a physical downlink control channel (PDCCH) including downlinkcontrol information (DCI), the DCI including information on scheduledresources including BWP index for a data transmission to or from a UserEquipment (UE), the data transmission to occupy one of the plurality ofBWPs or multiple ones of the plurality of BWPs; encode the PDCCH fortransmission; and process the data transmission based on the DCI.

Example 2 includes the subject matter of Example 1, and optionally,wherein the data transmission includes a physical downlink sharedchannel (PDSCH), and the processing circuitry is to implement crossnumerology scheduling by encoding the PDCCH for transmission on a BWP ofthe plurality of BWPs having a numerology that is different from anumerology of said one of the plurality of BWPs or multiple ones of theplurality of BWPs for the data transmission, the PDCCH transmitted at atime instance different from a time instance for the data transmission.

Example 3 includes the subject matter of Example 2, and optionally,wherein the processing circuitry is to indicate to the UE a BWP indexfor the BWP associated with the PDSCH via the DCI such that the UEswitches from a BWP of the PDCCH to a BWP indicated by the BWP index forthe data transmission.

Example 4 includes the subject matter of any one of Examples 1-3, andoptionally, wherein the data transmission includes one of a physicaldownlink shared channel (PDSCH) or a physical uplink shared channel(PUSCH).

Example 5 includes the subject matter of Example 1, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission is based on anumerology of a corresponding BWP of the plurality of BWPs configured bythe processing circuitry.

Example 6 includes the subject matter of Example 1, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein the DCI includes explicit information on a numerologyof respective ones of the multiple ones of the plurality of BWPs usedfor data transmission, the explicit information to override a numerologyof respective corresponding BWPs of the plurality of BWPs.

Example 7 includes the subject matter of Example 1, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission includes a singlenumerology based on a numerology of the PDCCH.

Example 8 includes the subject matter of Example 1, and optionally,wherein the processing circuitry is to encode the PDCCH for transmissionin a BWP different from said one of the plurality of BWPs or multipleones of the plurality of BWPs, and wherein a BWP for a transmission ofthe PDCCH has a different numerology than at least one of the said oneof the plurality of BWPs or multiple ones of the plurality of BWPs.

Example 9 includes the subject matter of Example 1, and optionally,wherein the processing circuitry is to configure the plurality of BWPsto exhibit a predetermined time pattern, and to multiplex two or more ofthe plurality of BWPs in a Time Division Multiplexing (TDM) manner.

Example 10 includes the subject matter of any one of Examples 1-3, andoptionally, wherein the data transmission includes a PDSCH to the UE,and wherein the processing circuitry is to use one of NR minimum systeminformation (MSI), NR remaining minimum system information (RMSI), NRsystem information block (SIB) or radio resource control (RRC) signalingto the UE to communicate whether to enable or disable time domain OCCfor a hybrid automatic repeat request acknowledgement (HARQ-ACK)feedback from the UE in a physical uplink control channel (PUCCH) to thegNodeB in response to the PDSCH.

Example 11 includes the subject matter of Example 10, and optionally,wherein the processing circuitry is to cause disabling of the timedomain OCC to cause a termination of the HARQ-NACK feedback earlier thana termination when OCC is enabled.

Example 12 includes the subject matter of any one of Examples 1-3, andoptionally, wherein the data transmission includes a PDSCH to the UE,and wherein the processing circuitry is to process a hybrid automaticrepeat request acknowledgement (HARQ-ACK) feedback from the UE in aphysical uplink control channel (PUCCH) to the gNodeB in response to thePDSCH, the PUCCH including an aggregation of a 1 symbol or 2 symbolshort PUCCH using frequency hopping.

Example 13 includes the subject matter of Example 12, and optionally,wherein the frequency hopping is based on one or more of frequencyhopping parameters including: a physical or virtual cell identifier(ID), a UE ID, a Cell Radio Network Temporary ID (C-RNTI), a symbolindex, a slot index, a frame index, and wherein the DCI includesinformation on the one or more of the frequency hopping parameters.

Example 14 includes the subject matter of Example 12, and optionally,wherein the processing circuitry is to use one of NR minimum systeminformation (MSI), NR remaining minimum system information (RMSI), NRsystem information block (SIB) or radio resource control (RRC) signalingto the UE to communicate a pattern of the frequency hopping.

Example 15 includes the subject matter of Example 12, and optionally,wherein the PUCCH is an aggregated 2 symbol short PUCCH, and wherein thefrequency hopping is across multiple ones of the plurality of BWPs.

Example 16 includes the subject matter of Example 1, and optionally,wherein: the data transmission includes a PDSCH to the UE; theprocessing circuitry is to process a hybrid automatic repeat requestacknowledgement (HARQ-ACK) feedback from the UE in a physical uplinkcontrol channel (PUCCH) to the gNodeB in response to the PDSCH; and aBWP associated with the PUCCH is different from and exhibits aone-to-one association with a BWP associated with the PDSCH or with aPDCCH from the gNodeB to the UE.

Example 17 includes the subject matter of any one of Examples 1-3, andoptionally, further including a front-end module coupled to theprocessing circuitry.

Example 18 includes the subject matter of Example 17, and optionally,further including at least one antenna coupled to the front-end module.

Example 19 includes a method to be used at an apparatus of a New Radio(NR) gNodeB, the method including: configuring a plurality of bandwidthparts (BWPs) associated with respective numerologies; determining aphysical downlink control channel (PDCCH) including downlink controlinformation (DCI), the DCI including information on scheduled resourcesincluding BWP index for a data transmission to or from a User Equipment(UE), the data transmission to occupy one of the plurality of BWPs ormultiple ones of the plurality of BWPs; encoding the PDCCH fortransmission; and processing the data transmission based on the DCI.

Example 20 includes the subject matter of Example 19, and optionally,wherein the data transmission includes a physical downlink sharedchannel (PDSCH), the method further includes implementing crossnumerology scheduling by encoding the PDCCH for transmission on a BWP ofthe plurality of BWPs having a numerology that is different from anumerology of said one of the plurality of BWPs or multiple ones of theplurality of BWPs for the data transmission, the PDCCH transmitted at atime instance different from a time instance for the data transmission.

Example 21 includes the subject matter of Example 20, and optionally,wherein the method further includes indicating to the UE a BWP index forthe BWP associated with the PDSCH via the DCI such that the UE switchesfrom a BWP of the PDCCH to a BWP indicated by the BWP index for the datatransmission.

Example 22 includes the subject matter of any one of Examples 19-20, andoptionally, wherein the data transmission includes one of a physicaldownlink shared channel (PDSCH) or a physical uplink shared channel(PUSCH).

Example 23 includes the subject matter of Example 19, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission is based on anumerology of a corresponding BWP of the plurality of BWPs.

Example 24 includes the subject matter of Example 19, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein the DCI includes explicit information on a numerologyof respective ones of the multiple ones of the plurality of BWPs usedfor data transmission, the explicit information to override a numerologyof respective corresponding BWPs of the plurality of BWPs.

Example 25 includes the subject matter of Example 19, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission includes a singlenumerology based on a numerology of the PDCCH.

Example 26 includes the subject matter of Example 19, and optionally,further including encoding the PDCCH for transmission in a BWP differentfrom said one of the plurality of BWPs or multiple ones of the pluralityof BWPs, and wherein a BWP for a transmission of the PDCCH has adifferent numerology than at least one of the said one of the pluralityof BWPs or multiple ones of the plurality of BWPs.

Example 27 includes the subject matter of Example 19, and optionally,further including configuring the plurality of BWPs to exhibit apredetermined time pattern, and multiplexing two or more of theplurality of BWPs in a Time Division Multiplexing (TDM) manner.

Example 28 includes the subject of Example 19, and optionally, whereinthe data transmission includes a PDSCH to the UE, and further includingusing one of NR minimum system information (MSI), NR remaining minimumsystem information (RMSI), NR system information block (SIB) or radioresource control (RRC) signaling to the UE to communicate whether toenable or disable time domain OCC for a hybrid automatic repeat requestacknowledgement (HARQ-ACK) feedback from the UE in a physical uplinkcontrol channel (PUCCH) to the gNodeB in response to the PDSCH.

Example 29 includes the subject matter of Example 28, and optionally,further including causing disabling of the time domain OCC to cause atermination of the HARQ-NACK feedback earlier than a termination whenOCC is enabled.

Example 30 includes the subject matter of any one of Examples 19-20, andoptionally, wherein the data transmission includes a PDSCH to the UE,and further including processing a hybrid automatic repeat requestacknowledgement (HARQ-ACK) feedback from the UE in a physical uplinkcontrol channel (PUCCH) to the gNodeB in response to the PDSCH, thePUCCH including an aggregation of a 1 symbol or 2 symbol short PUCCHusing frequency hopping.

Example 31 includes the subject matter of Example 30, and optionally,wherein the frequency hopping is based on one or more of frequencyhopping parameters including: a physical or virtual cell identifier(ID), a UE ID, a Cell Radio Network Temporary ID (C-RNTI), a symbolindex, a slot index, a frame index, and wherein the DCI includesinformation on the one or more of the frequency hopping parameters.

Example 32 includes the subject matter of Example 30, and optionally,further including using one of NR minimum system information (MSI), NRremaining minimum system information (RMSI), NR system information block(SIB) or radio resource control (RRC) signaling to the UE to communicatea pattern of the frequency hopping.

Example 33 includes the subject matter of Example 30, and optionally,wherein the PUCCH is an aggregated 2 symbol short PUCCH, and wherein thefrequency hopping is across multiple ones of the plurality of BWPs.

Example 34 includes the subject matter of Example 19, and optionally,wherein: the data transmission includes a PDSCH to the UE; the methodincludes processing a hybrid automatic repeat request acknowledgement(HARQ-ACK) feedback from the UE in a physical uplink control channel(PUCCH) to the gNodeB in response to the PDSCH; and a BWP associatedwith the PUCCH is different from and exhibits a one-to-one associationwith a BWP associated with the PDSCH or with a PDCCH from the gNodeB tothe UE.

Example 35 includes an apparatus of a New Radio (NR) gNodeB, theapparatus comprising: means for configuring a plurality of bandwidthparts (BWPs) associated with respective numerologies; means fordetermining a physical downlink control channel (PDCCH) includingdownlink control information (DCI), the DCI including information onscheduled resources including BWP index for a data transmission to orfrom a User Equipment (UE), the data transmission to occupy one of theplurality of BWPs or multiple ones of the plurality of BWPs; means forencoding the PDCCH for transmission; and means for processing the datatransmission based on the DCI.

Example 36 includes the subject matter of Example 35, and optionally,wherein the data transmission includes one of a physical downlink sharedchannel (PDSCH) or a physical uplink shared channel (PUSCH).

Example 37 includes the subject matter of Example 35, and optionally,further including means for implementing cross numerology scheduling byencoding the PDCCH for transmission on a BWP of the plurality of BWPshaving a numerology that is different from a numerology of said one ofthe plurality of BWPs or multiple ones of the plurality of BWPs for thedata transmission, the PDCCH transmitted at a time instance differentfrom a time instance for the data transmission.

Example 38 includes the subject matter of Example 37, and optionally,wherein the data transmission includes a physical downlink sharedchannel (PDSCH), the apparatus further including means for indicating tothe UE a BWP index for the BWP associated with the PDSCH via the DCIsuch that the UE switches from a BWP of the PDCCH to a BWP indicated bythe BWP index for the data transmission.

Example 39 includes an apparatus of a New Radio (NR) User Equipment(UE), the apparatus including a memory storing instructions, andprocessing circuitry to execute the instructions to: process a physicaldownlink control channel (PDCCH) from a NR gNodeB, the PDCCH includingdownlink control information (DCI) indicating scheduled resources for adata transmission to or from the UE, the data transmission to occupy oneor multiple ones of a plurality of BWPs configured by the gNodeB; andprocess the data transmission based on the DCI.

Example 40 includes the subject matter of Example 39, and optionally,wherein the processing circuitry is to determine a cross numerologyscheduling by the gNodeB by processing information in the PDCCH, thePDCCH on a BWP of the plurality of BWPs that has a numerology differentfrom a numerology of said one or multiple ones of a plurality of BWPsfor the data transmission, the PDCCH transmitted at a time instancedifferent from a time instance for the data transmission.

Example 41 includes the subject matter of Example 40, and optionally,wherein the processing circuitry is to decode information in at leastone of the DCI or higher layer signaling to determine a BWP index forthe BWP associated with the PDSCH, and to switch from a BWP of the PDCCHto a BWP indicated by the BWP index for the data transmission.

Example 42 includes the subject matter of any one of Examples 39-41, andoptionally, wherein the data transmission includes one of a physicaldownlink shared channel (PDSCH) or a physical uplink shared channel(PUSCH).

Example 43 includes the subject matter of Example 39, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission is based on anumerology of a corresponding BWP of the plurality of BWPs configured bythe gNodeB.

Example 44 includes the subject matter of Example 39, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein the DCI includes explicit information on a numerologyof respective ones of the multiple ones of the plurality of BWPs usedfor data transmission, the explicit information to override a numerologyof respective corresponding BWPs of the plurality of BWPs configured bythe gNodeB.

Example 45 includes the subject matter of Example 39, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission includes a singlenumerology based on a numerology of the PDCCH.

Example 46 includes the subject matter of Example 39, and optionally,wherein the processing circuitry is to process the PDCCH in a BWPdifferent from said one or multiple ones of a plurality of BWPs, andwherein a BWP for a transmission of the PDCCH has a different numerologythan at least one of the said one of the plurality of BWPs or multipleones of the plurality of BWPs.

Example 47 includes the subject matter of Example 39, and optionally,wherein the plurality of BWPs exhibits a predetermined time pattern, andwherein two or more of the plurality of BWPs are multiplexed in a TimeDivision Multiplexing (TDM) manner.

Example 48 includes the subject matter of Example 39, and optionally,wherein the data transmission includes a PDSCH to the UE, and whereinthe processing circuitry is to process one of NR minimum systeminformation (MSI), NR remaining minimum system information (RMSI), NRsystem information block (SIB) or radio resource control (RRC) signalingfrom the gNodeB to determine whether to enable or disable time domainOCC for a hybrid automatic repeat request acknowledgement (HARQ-ACK)feedback to the gNodeB in a physical uplink control channel (PUCCH) inresponse to the PDSCH.

Example 49 includes the subject matter of Example 46, and optionally,wherein the processing circuitry is to cause disabling of the timedomain OCC to cause a termination of the HARQ-NACK feedback earlier thana termination when OCC is enabled.

Example 50 includes the subject matter of any one of Examples 39-41, andoptionally, wherein the data transmission includes a PDSCH to the UE,and wherein the processing circuitry is to process a hybrid automaticrepeat request acknowledgement (HARQ-ACK) feedback to the gNodeB in aphysical uplink control channel (PUCCH) in response to the PDSCH, thePUCCH including an aggregation of a 1 symbol or 2 symbol short PUCCHusing frequency hopping.

Example 51 includes the subject matter of Example 48, and optionally,wherein the frequency hopping is based on one or more of frequencyhopping parameters including: a physical or virtual cell identifier(ID), a UE ID, a Cell Radio Network Temporary ID (C-RNTI), a symbolindex, a slot index, a frame index, and wherein the DCI includesinformation on the one or more of the frequency hopping parameters.

Example 52 includes the subject matter of Example 48, and optionally,wherein the processing circuitry is to process one of NR minimum systeminformation (MSI), NR remaining minimum system information (RMSI), NRsystem information block (SIB) or radio resource control (RRC) signalingfrom the gNodeB to determine a pattern of the frequency hopping.

Example 53 includes the subject matter of Example 48, and optionally,wherein the PUCCH is an aggregated 2 symbol short PUCCH, and wherein thefrequency hopping is across multiple ones of the plurality of BWPs.

Example 54 includes the subject matter of Example 39, and optionally,wherein: the data transmission includes a PDSCH to the UE; theprocessing circuitry is to process a hybrid automatic repeat requestacknowledgement (HARQ-ACK) feedback to the gNodeB in a physical uplinkcontrol channel (PUCCH) in response to the PDSCH; and a BWP associatedwith the PUCCH is different from and exhibits a one-to-one associationwith a BWP associated with the PDSCH or with a PDCCH from the gNodeB tothe UE.

Example 55 includes the subject matter of any one of Examples 39-54, andoptionally, further including a front-end module coupled to theprocessing circuitry.

Example 56 includes the subject matter of Example 55, and optionally,further including at least one antenna coupled to the front-end module.

Example 57 includes a method of operating an apparatus of a New Radio(NR) User Equipment (UE), the method including: processing a physicaldownlink control channel (PDCCH) from a NR gNodeB, the PDCCH includingdownlink control information (DCI) indicating scheduled resources for adata transmission to or from the UE, the data transmission to occupy oneor multiple ones of a plurality of BWPs configured by the gNodeB; andprocessing the data transmission based on the DCI.

Example 58 includes the subject matter of Example 57, and optionally,wherein the method further includes determining a cross numerologyscheduling by the gNodeB by processing information in the PDCCH, thePDCCH on a BWP of the plurality of BWPs that has a numerology differentfrom a numerology of said one or multiple ones of a plurality of BWPsfor the data transmission, the PDCCH transmitted at a time instancedifferent from a time instance for the data transmission.

Example 59 includes the subject matter of Example 58, and optionally,wherein the data transmission includes a physical downlink sharedchannel (PDSCH), and the method further includes decoding information inat least one of the DCI or higher layer signaling to determine a BWPindex for the BWP associated with the PDSCH, and switching from a BWP ofthe PDCCH to a BWP indicated by the BWP index for the data transmission.

Example 60 includes the subject matter of any one of Examples 57-59, andoptionally, wherein the data transmission includes one of a physicaldownlink shared channel (PDSCH) or a physical uplink shared channel(PUSCH).

Example 61 includes the subject matter of Example 57, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission is based on anumerology of a corresponding BWP of the plurality of BWPs configured bythe gNodeB.

Example 62 includes the subject matter of Example 57, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein the DCI includes explicit information on a numerologyof respective ones of the multiple ones of the plurality of BWPs usedfor data transmission, the explicit information to override a numerologyof respective corresponding BWPs of the plurality of BWPs configured bythe gNodeB.

Example 63 includes the subject matter of Example 57, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission includes a singlenumerology based on a numerology of the PDCCH.

Example 64 includes the subject matter of Example 57, and optionally,wherein the method further includes processing the PDCCH in a BWPdifferent from said one or multiple ones of a plurality of BWPs, andwherein a BWP for a transmission of the PDCCH has a different numerologythan at least one of the said one of the plurality of BWPs or multipleones of the plurality of BWPs.

Example 65 includes the subject matter of Example 57, and optionally,wherein the plurality of BWPs exhibits a predetermined time pattern, andwherein two or more of the plurality of BWPs are multiplexed in a TimeDivision Multiplexing (TDM) manner.

Example 66 includes the subject matter of Example 57, and optionally,wherein the data transmission includes a PDSCH to the UE, and whereinthe method further includes one of NR minimum system information (MSI),NR remaining minimum system information (RMSI), NR system informationblock (SIB) or radio resource control (RRC) signaling from the gNodeB todetermine whether to enable or disable time domain OCC for a hybridautomatic repeat request acknowledgement (HARQ-ACK) feedback to thegNodeB in a physical uplink control channel (PUCCH) in response to thePDSCH.

Example 67 includes the subject matter of Example 66, and optionally,wherein the method further includes causing disabling of the time domainOCC to cause a termination of the HARQ-NACK feedback earlier than atermination when OCC is enabled.

Example 68 includes the subject matter of any one of Examples 57-59, andoptionally, wherein the data transmission includes a PDSCH to the UE,and wherein the method further includes processing a hybrid automaticrepeat request acknowledgement (HARQ-ACK) feedback to the gNodeB in aphysical uplink control channel (PUCCH) in response to the PDSCH, thePUCCH including an aggregation of a 1 symbol or 2 symbol short PUCCHusing frequency hopping.

Example 69 includes the subject matter of Example 68, and optionally,wherein the frequency hopping is based on one or more of frequencyhopping parameters including: a physical or virtual cell identifier(ID), a UE ID, a Cell Radio Network Temporary ID (C-RNTI), a symbolindex, a slot index, a frame index, and wherein the DCI includesinformation on the one or more of the frequency hopping parameters.

Example 70 includes the subject matter of Example 68, and optionally,wherein the method further includes processing one of NR minimum systeminformation (MSI), NR remaining minimum system information (RMSI), NRsystem information block (SIB) or radio resource control (RRC) signalingfrom the gNodeB to determine a pattern of the frequency hopping.

Example 71 includes the subject matter of Example 68, and optionally,wherein the PUCCH is an aggregated 2 symbol short PUCCH, and wherein thefrequency hopping is across multiple ones of the plurality of BWPs.

Example 72 includes the subject matter of Example 57, and optionally,wherein: the data transmission includes a PDSCH to the UE; the methodfurther includes processing a hybrid automatic repeat requestacknowledgement (HARQ-ACK) feedback to the gNodeB in a physical uplinkcontrol channel (PUCCH) in response to the PDSCH; and a BWP associatedwith the PUCCH is different from and exhibits a one-to-one associationwith a BWP associated with the PDSCH or with a PDCCH from the gNodeB tothe UE.

Example 73 includes an apparatus of a New Radio (NR) User Equipment(UE), the apparatus including: means for processing a physical downlinkcontrol channel (PDCCH) from a NR gNodeB, the PDCCH including downlinkcontrol information (DCI) indicating scheduled resources for a datatransmission to or from the UE, the data transmission to occupy one ormultiple ones of a plurality of BWPs configured by the gNodeB; and meansfor processing the data transmission based on the DCI.

Example 74 includes the subject matter of Example 73, and optionally,wherein the data transmission includes one of a physical downlink sharedchannel (PDSCH) or a physical uplink shared channel (PUSCH).

Example 75 includes the subject matter of Example 73, and optionally,wherein the data transmission occupies multiple ones of the plurality ofBWPs, and wherein a numerology of respective ones of the multiple onesof the plurality of BWPs used for data transmission is based on anumerology of a corresponding BWP of the plurality of BWPs configured bythe gNodeB.

Example 76 includes a machine-readable medium including code which, whenexecuted, is to cause a machine to perform the method of any one ofExamples 19-34 and 57-75.

Example 77 includes an apparatus of a New Radio (NR) gNodeB, theapparatus comprising a memory storing instructions and processingcircuitry, the processing circuitry to implement the instructions to:determine a multiplexing scheme for a downlink transmission and for ademodulation reference signal (DM-RS) corresponding to the downlinktransmission, the downlink transmission including at least one of aphysical downlink control channel (PDCCH) or a physical downlink sharedchannel (PDSCH); encode for transmission to a NR User Equipment (UE) asignal including an indication of the multiplexing scheme; determine thedownlink transmission; and encode for transmission the downlinktransmission based on the indication of the multiplexing scheme.

Example 78 includes the subject matter of Example 77, and optionally,wherein the signal including the indication of the multiplexing schemeis to be addressed to a plurality of NR User Equipments (UEs) includingthe NR UE.

Example 79 includes the subject matter of Example 77, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that, when the PDSCH is transmitted in a symbol different from asymbol used to transmit a corresponding PDCCH, the DM-RS is to bemultiplexed with the PDSCH in a time division multiplexing (TDM) mannereither before or after the PDSCH.

Example 80 includes the subject matter of Example 77, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that the DM-RS is multiplexed with the downlink transmission in afrequency division multiplexing (FDM) manner and shares at least onesymbol with the downlink transmission.

Example 81 includes the subject matter of Example 77, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that the DM-RS is multiplexed with the downlink transmission in afrequency division multiplexing (FDM) manner or in a time divisionmultiplexing (TDM) manner.

Example 82 includes the subject matter of Example 81, and optionally,wherein the processing circuitry is to determine whether the FDM manneror the TDM manner is used one of: implicitly based on at least one of asubcarrier spacing, a modulation and coding scheme (MCS), or anallocated bandwidth associated with the downlink transmission; orimplicitly based on a waveform of a physical uplink shared channel(PUSCH) from the UE.

Example 83 includes the subject matter of Example 81, and optionally,wherein the processing circuitry is to at least one of: use higherlayers to configure a choice as between the FDM manner and the TDMmanner; and determine a downlink control information (DCI) todynamically indicate the FDM manner or the TDM manner.

Example 84 includes the subject matter of Example 77, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that, when the PDSCH is transmitted in a same symbol as acorresponding PDCCH, the PDSCH and the corresponding PDCCH are to bemultiplexed in an frequency division multiplexing (FDM) manner.

Example 85 includes the subject matter of Example 84, and optionally,wherein the PDSCH and the corresponding PDCCH span a single symbol, andwherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH, the processing circuitry tofurther align a bundling size for the PDSCH and the corresponding PDCCH.

Example 86 includes the subject matter of Example 84, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH to be transmittedin allocated frequency resources of a first symbol of the two or moresymbols where PDSCH and the corresponding PDCCH do not overlap in afrequency domain.

Example 87 includes the subject matter of Example 84, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH to be transmittedin allocated frequency resources of a second symbol of the two or moresymbols where PDSCH and the corresponding PDCCH overlap in a frequencydomain.

Example 88 includes the subject matter of Example 84, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH, the dedicated DM-RS for the PDSCH to betransmitted only in allocated frequency resources of a second symbol ofthe two or more symbols.

Example 89 includes the subject matter of Example 84, and optionally,wherein: the PDSCH and the corresponding span only two symbols ofallocated PDSCH resource; and the DM-RS includes a dedicated DM-RS forthe PDSCH and a dedicated DM-RS for the corresponding PDCCH, thededicated DM-RS for the PDSCH to be transmitted only in allocatedfrequency resources of a first symbol of the two symbols, the dedicatedDM-RS for the PDCCH to be transmitted one of: only in allocatedfrequency resources of the first symbol or in allocated frequencyresources of the two symbols.

Example 90 includes the subject matter of Example 77, and optionally,wherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH, and wherein the processingcircuitry is to determine an antenna port (AP) multiplexing scheme tocontrol whether the dedicated DM-RS for the PDSCH and the dedicatedDM-RS for the corresponding PDCCH share a same symbol.

Example 91 includes the subject matter of Example 77, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that, when the PDSCH is transmitted in a same symbol as acorresponding PDCCH, the PDSCH and the corresponding PDCCH are to bemultiplexed in an spatial division multiplexing (SDM) manner or in acombination of a SDM manner and a frequency division multiplexing (FDM)manner.

Example 92 includes the subject matter of Example 91, and optionally,wherein the PDSCH is scheduled based on multiple layers transmission,the processing circuitry to use one layer for transmission of the PDCCHin a shared physical resource.

Example 93 includes the subject matter of Example 91, and optionally,wherein the processing circuitry is to determine an AP index fortransmission of the PDCCH by way of at least one of: using a predefinedAP index; higher layer configuration using Radio Resource Control (RRC)signaling; or deriving the AP index from at least one of a physical orvirtual cell identifier (ID), an UE ID, or a time or frequency resourceindex including at least one of symbol index, slot index or frame index.

Example 94 includes the subject matter of Example 91, and optionally,wherein the DM-RS includes a shared DM-RS for both the PDSCH and thePDCCH on a shared resource.

Example 95 includes the subject matter of Example 77, and optionally,wherein: the DM-RS is a front-loaded DM-RS; the PDSCH is a symbol-levelPDSCH; a location in a time domain of the DM-RS for the PDSCH is basedon a location of a first symbol of the PDSCH within a correspondingslot; and the processing circuitry is configured to determine a maximumtime gap number of symbols between the front-loaded DM-RS for slot-levelscheduling and the PDSCH based on one of a predetermined maximum timegap, and a maximum time gap configured via higher layers including NRminimum system information (MSI), NR remaining minimum systeminformation (RMSI), NR system information block (SIB) or radio resourcecontrol (RRC) signaling.

Example 96 includes the subject matter of Example 77, and optionally,wherein the DM-RS includes a front-loaded DM-RS, and additional DM-RS,the processing circuitry further to configure a time domain bundling ofDM-RS symbols for channel estimation.

Example 97 includes the subject matter of Example 77, and optionally,further including a front-end module coupled to the processingcircuitry.

Example 98 includes the subject matter of Example 97, and optionally,further including at least one antenna coupled to the front-end module.

Example 99 includes a method of operating an apparatus of a New Radio(NR) gNodeB, the method comprising: determining a multiplexing schemefor a downlink transmission and for a demodulation reference signal(DM-RS) corresponding to the downlink transmission, the downlinktransmission including at least one of a physical downlink controlchannel (PDCCH) or a physical downlink shared channel (PDSCH); encodingfor transmission to a NR User Equipment (UE) a signal including anindication of the multiplexing scheme; determining the downlinktransmission; and encoding the downlink transmission for transmissionbased on the indication of the multiplexing scheme.

Example 100 includes the subject matter of Example 99, and optionally,wherein the signal including the indication of the multiplexing schemeis to be addressed to a plurality of NR User Equipments (UEs) includingthe NR UE.

Example 101 includes the subject matter of Example 99, and optionally,wherein the method further includes determining the multiplexing schemesuch that, when the PDSCH is transmitted in a symbol different from asymbol used to transmit a corresponding PDCCH, the DM-RS is to bemultiplexed with the PDSCH in a time division multiplexing (TDM) mannereither before or after the PDSCH.

Example 102 includes the subject matter of Example 99, and optionally,wherein the method further includes determining the multiplexing schemesuch that the DM-RS is multiplexed with the downlink transmission in afrequency division multiplexing (FDM) manner and shares at least onesymbol with the downlink transmission.

Example 103 includes the subject matter of Example 99, and optionally,wherein the method further includes determining the multiplexing schemesuch that the DM-RS is multiplexed with the downlink transmission in afrequency division multiplexing (FDM) manner or in a time divisionmultiplexing (TDM) manner.

Example 104 includes the subject matter of Example 103, and optionally,wherein the method further includes determining whether the FDM manneror the TDM manner is used one of: implicitly based on at least one of asubcarrier spacing, a modulation and coding scheme (MCS), or anallocated bandwidth associated with the downlink transmission; orimplicitly based on a waveform of a physical uplink shared channel(PUSCH) from the UE.

Example 105 includes the subject matter of Example 103, and optionally,wherein the method further includes at least one of: using higher layersto configure a choice as between the FDM manner and the TDM manner; anddetermining a downlink control information (DCI) to dynamically indicatethe FDM manner or the TDM manner.

Example 106 includes the subject matter of Example 99, and optionally,wherein the method further includes determining the multiplexing schemesuch that, when the PDSCH is transmitted in a same symbol as acorresponding PDCCH, the PDSCH and the corresponding PDCCH are to bemultiplexed in an frequency division multiplexing (FDM) manner.

Example 107 includes the subject matter of Example 106, and optionally,wherein the PDSCH and the corresponding PDCCH span a single symbol, andwherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH, the method furtherincluding aligning a bundling size for the PDSCH and the correspondingPDCCH.

Example 108 includes the subject matter of Example 106, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH to be transmittedin allocated frequency resources of a first symbol of the two or moresymbols where PDSCH and the corresponding PDCCH do not overlap in afrequency domain.

Example 109 includes the subject matter of Example 106, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH to be transmittedin allocated frequency resources of a second symbol of the two or moresymbols where PDSCH and the corresponding PDCCH overlap in a frequencydomain.

Example 110 includes the subject matter of Example 106, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH, the dedicated DM-RS for the PDSCH to betransmitted only in allocated frequency resources of a second symbol ofthe two or more symbols.

Example 111 includes the subject matter of Example 106, and optionally,wherein: the PDSCH and the corresponding span only two symbols ofallocated PDSCH resource; and the DM-RS includes a dedicated DM-RS forthe PDSCH and a dedicated DM-RS for the corresponding PDCCH, thededicated DM-RS for the PDSCH to be transmitted only in allocatedfrequency resources of a first symbol of the two symbols, the dedicatedDM-RS for the PDCCH to be transmitted one of: only in allocatedfrequency resources of the first symbol or in allocated frequencyresources of the two symbols.

Example 112 includes the subject matter of Example 99, and optionally,wherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH, and wherein the methodfurther includes determining an antenna port (AP) multiplexing scheme tocontrol whether the dedicated DM-RS for the PDSCH and the dedicatedDM-RS for the corresponding PDCCH share a same symbol.

Example 113 includes the subject matter of Example 99, and optionally,wherein the method further includes determining the multiplexing schemesuch that, when the PDSCH is transmitted in a same symbol as acorresponding PDCCH, the PDSCH and the corresponding PDCCH are to bemultiplexed in an spatial division multiplexing (SDM) manner or in acombination of a SDM manner and a frequency division multiplexing (FDM)manner.

Example 114 includes the subject matter of Example 113, and optionally,wherein the PDSCH is scheduled based on multiple layers transmission,the method further including using one layer for transmission of thePDCCH in a shared physical resource.

Example 115 includes the subject matter of Example 113, and optionally,wherein the method further including determining an AP index fortransmission of the PDCCH by way of at least one of: using a predefinedAP index; higher layer configuration using Radio Resource Control (RRC)signaling; or deriving the AP index from at least one of a physical orvirtual cell identifier (ID), an UE ID, or a time or frequency resourceindex including at least one of symbol index, slot index or frame index.

Example 116 includes the subject matter of Example 113, and optionally,wherein the DM-RS includes a shared DM-RS for both the PDSCH and thePDCCH on a shared resource.

Example 117 includes the subject matter of Example 99, and optionally,wherein: the DM-RS is a front-loaded DM-RS; the PDSCH is a symbol-levelPDSCH; a location in a time domain of the DM-RS for the PDSCH is basedon a location of a first symbol of the PDSCH within a correspondingslot; and the method further includes determining a maximum time gapnumber of symbols between the front-loaded DM-RS for slot-levelscheduling and the PDSCH based on one of a predetermined maximum timegap, and a maximum time gap configured via higher layers including NRminimum system information (MSI), NR remaining minimum systeminformation (RMSI), NR system information block (SIB) or radio resourcecontrol (RRC) signaling.

Example 118 includes the subject matter of Example 99, and optionally,wherein the DM-RS includes a front-loaded DM-RS, and additional DM-RS,the method further includes configuring a time domain bundling of DM-RSsymbols for channel estimation.

Example 119 includes an apparatus of a New Radio (NR) gNodeB, theapparatus comprising: means for determining a multiplexing scheme for adownlink transmission and for a demodulation reference signal (DM-RS)corresponding to the downlink transmission, the downlink transmissionincluding at least one of a physical downlink control channel (PDCCH) ora physical downlink shared channel (PDSCH); means for encoding fortransmission to a NR User Equipment (UE) a signal including anindication of the multiplexing scheme; means for determining thedownlink transmission; and means for encoding for transmission thedownlink transmission based on the indication of the multiplexingscheme.

Example 120 includes the subject matter of Example 119, and optionally,wherein the signal including the indication of the multiplexing schemeis to be addressed to a plurality of NR User Equipments (UEs) includingthe NR UE.

Example 121 includes the subject matter of Example 119, and optionally,further including means for determining the multiplexing scheme suchthat, when the PDSCH is transmitted in a symbol different from a symbolused to transmit a corresponding PDCCH, the DM-RS is to be multiplexedwith the PDSCH in a time division multiplexing (TDM) manner eitherbefore or after the PDSCH.

Example 122 includes a machine-readable medium including code which,when executed, is to cause a machine to perform the method of any one ofExamples 99-118.

Example 123 includes an apparatus of a New Radio (NR) User Equipment(UE), the apparatus comprising a memory storing instructions, andprocessing circuitry to implement the instructions to: process a signalfrom a NR gNodeB including an indication of a multiplexing scheme for adownlink transmission and for a demodulation reference signal (DM-RS)corresponding to the downlink transmission, the downlink transmissionincluding at least one of a physical downlink control channel (PDCCH) ora physical downlink shared channel (PDSCH); determine the multiplexingscheme from the indication in the signal; and process the downlinktransmission based on the indication of the multiplexing scheme.

Example 124 includes the subject matter of Example 123, and optionally,wherein the signal including the indication of the multiplexing schemeis addressed to a plurality of NR User Equipments (UEs) including the NRUE.

Example 125 includes the subject matter of Example 123, and optionally,wherein the processing circuitry is to determine the multiplexing schemesuch that, when the PDSCH is transmitted in a symbol different from asymbol used to transmit a corresponding PDCCH, the DM-RS is to bemultiplexed with the PDSCH in a time division multiplexing (TDM) mannereither before or after the PDSCH.

Example 126 includes the subject matter of Example 123, and optionally,wherein the processing circuitry is to determine from the signal thatthe multiplexing scheme such that the DM-RS is multiplexed with thedownlink transmission in a frequency division multiplexing (FDM) mannerand shares at least one symbol with the downlink transmission.

Example 127 includes the subject matter of Example 123, and optionally,wherein the processing circuitry is to determine from the signal thatthe multiplexing scheme is such that the DM-RS is multiplexed with thedownlink transmission in a frequency division multiplexing (FDM) manneror in a time division multiplexing (TDM) manner.

Example 128 includes the subject matter of Example 127, and optionally,wherein the processing circuitry is to implicitly determine from thesignal whether the FDM manner or the TDM manner is used based on atleast one of a subcarrier spacing, a modulation and coding scheme (MCS),or an allocated bandwidth associated with the downlink transmission.

Example 129 includes the subject matter of Example 127, and optionally,wherein the processing circuitry is to process downlink controlinformation (DCI) from the gNodeB to determine whether the FDM manner orthe TDM manner is used.

Example 130 includes the subject matter of Example 123, and optionally,wherein the processing circuitry is to determine from the signal thatthe multiplexing scheme is such that, when the PDSCH is received in asame symbol as a corresponding PDCCH, the PDSCH and the correspondingPDCCH are multiplexed in an frequency division multiplexing (FDM)manner.

Example 131 includes the subject matter of Example 130, and optionally,wherein the PDSCH and the corresponding PDCCH span a single symbol, andwherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH.

Example 132 includes the subject matter of Example 130, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH received inallocated frequency resources of a first symbol of the two or moresymbols where PDSCH and the corresponding PDCCH do not overlap in afrequency domain.

Example 133 includes the subject matter of Example 130, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH received inallocated frequency resources of a second symbol of the two or moresymbols where PDSCH and the corresponding PDCCH overlap in a frequencydomain.

Example 134 includes the subject matter of Example 130, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH, the dedicated DM-RS for the PDSCHreceived only in allocated frequency resources of a second symbol of thetwo or more symbols.

Example 135 includes the subject matter of Example 130, and optionally,wherein: the PDSCH and the corresponding span only two symbols ofallocated PDSCH resource; and the DM-RS includes a dedicated DM-RS forthe PDSCH and a dedicated DM-RS for the corresponding PDCCH, thededicated DM-RS for the PDSCH received only in allocated frequencyresources of a first symbol of the two symbols, the dedicated DM-RS forthe PDCCH received one of: only in allocated frequency resources of thefirst symbol or in allocated frequency resources of the two symbols.

Example 136 includes the subject matter of Example 123, and optionally,wherein the processing circuitry is to determine from the signal thatthe multiplexing scheme is such that, when the PDSCH is received in asame symbol as a corresponding PDCCH, the PDSCH and the correspondingPDCCH are multiplexed in an spatial division multiplexing (SDM) manneror in a combination of a SDM manner and a frequency divisionmultiplexing (FDM) manner.

Example 137 includes the subject matter of Example 136, and optionally,wherein the PDSCH is scheduled based on multiple layers transmission,and the PDCCH is received in one layer in a shared physical resource.

Example 138 includes the subject matter of Example 136, and optionally,wherein the DM-RS includes a shared DM-RS for both the PDSCH and thePDCCH on a shared resource.

Example 139 includes the subject matter of Example 123, and optionally,wherein the DM-RS includes a front-loaded DM-RS, and additional DM-RS,DM-RS symbols including the front-loaded DM-RS and the additional DM-RSbeing time bundled to yield time bundled DM-RS symbols, the processingcircuitry to perform channel estimation based on the time bundled DM-RSsymbols.

Example 140 includes the subject matter of Example 123, and optionally,further including a front-end module coupled to the processingcircuitry.

Example 141 includes the subject matter of Example 140, and optionally,further including at least one antenna coupled to the front-end module.

Example 142 includes a method of operating an apparatus of a New Radio(NR) User Equipment (UE), the method comprising: processing a signalfrom a NR gNodeB including an indication of a multiplexing scheme for adownlink transmission and for a demodulation reference signal (DM-RS)corresponding to the downlink transmission, the downlink transmissionincluding at least one of a physical downlink control channel (PDCCH) ora physical downlink shared channel (PDSCH); determining the multiplexingscheme from the indication in the signal; and processing the downlinktransmission based on the indication of the multiplexing scheme.

Example 143 includes the subject matter of Example 142, and optionally,wherein the signal including the indication of the multiplexing schemeis addressed to a plurality of NR User Equipments (UEs) including the NRUE.

Example 144 includes the subject matter of Example 142, and optionally,wherein the method further includes determining the multiplexing schemesuch that, when the PDSCH is transmitted in a symbol different from asymbol used to transmit a corresponding PDCCH, the DM-RS is to bemultiplexed with the PDSCH in a time division multiplexing (TDM) mannereither before or after the PDSCH.

Example 145 includes the subject matter of Example 142, and optionally,wherein the method further includes determining from the signal that themultiplexing scheme such that the DM-RS is multiplexed with the downlinktransmission in a frequency division multiplexing (FDM) manner andshares at least one symbol with the downlink transmission.

Example 146 includes the subject matter of Example 142, and optionally,wherein the method further includes determining from the signal that themultiplexing scheme is such that the DM-RS is multiplexed with thedownlink transmission in a frequency division multiplexing (FDM) manneror in a time division multiplexing (TDM) manner.

Example 147 includes the subject matter of Example 146, and optionally,wherein the method further includes implicitly determining from thesignal whether the FDM manner or the TDM manner is used based on atleast one of a subcarrier spacing, a modulation and coding scheme (MCS),or an allocated bandwidth associated with the downlink transmission.

Example 148 includes the subject matter of Example 146, and optionally,wherein the method further includes processing downlink controlinformation (DCI) from the gNodeB to determine whether the FDM manner orthe TDM manner is used.

Example 149 includes the subject matter of Example 142, and optionally,wherein the method further includes determining from the signal that themultiplexing scheme is such that, when the PDSCH is received in a samesymbol as a corresponding PDCCH, the PDSCH and the corresponding PDCCHare multiplexed in an frequency division multiplexing (FDM) manner.

Example 150 includes the subject matter of Example 149, and optionally,wherein the PDSCH and the corresponding PDCCH span a single symbol, andwherein the DM-RS includes a dedicated DM-RS for the PDSCH and adedicated DM-RS for the corresponding PDCCH.

Example 151 includes the subject matter of Example 149, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH received inallocated frequency resources of a first symbol of the two or moresymbols where PDSCH and the corresponding PDCCH do not overlap in afrequency domain.

Example 152 includes the subject matter of Example 149, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH and a dedicated DM-RS for thecorresponding PDCCH, the dedicated DM-RS for the PDSCH received inallocated frequency resources of a second symbol of the two or moresymbols where PDSCH and the corresponding PDCCH overlap in a frequencydomain.

Example 153 includes the subject matter of Example 149, and optionally,wherein: the PDSCH spans two or more symbols of allocated PDSCHresource; the corresponding PDCCH spans only a first symbol of the twoor more symbols of the allocated PDSCH resource; and the DM-RS includesa dedicated DM-RS for the PDSCH, the dedicated DM-RS for the PDSCHreceived only in allocated frequency resources of a second symbol of thetwo or more symbols.

Example 154 includes the subject matter of Example 149, and optionally,wherein: the PDSCH and the corresponding span only two symbols ofallocated PDSCH resource; and the DM-RS includes a dedicated DM-RS forthe PDSCH and a dedicated DM-RS for the corresponding PDCCH, thededicated DM-RS for the PDSCH received only in allocated frequencyresources of a first symbol of the two symbols, the dedicated DM-RS forthe PDCCH received one of: only in allocated frequency resources of thefirst symbol or in allocated frequency resources of the two symbols.

Example 155 includes the subject matter of Example 142, and optionally,wherein the method further includes determining from the signal that themultiplexing scheme is such that, when the PDSCH is received in a samesymbol as a corresponding PDCCH, the PDSCH and the corresponding PDCCHare multiplexed in an spatial division multiplexing (SDM) manner or in acombination of a SDM manner and a frequency division multiplexing (FDM)manner.

Example 156 includes the subject matter of Example 155, and optionally,wherein the PDSCH is scheduled based on multiple layers transmission,and the PDCCH is received in one layer in a shared physical resource.

Example 157 includes the subject matter of Example 155, and optionally,wherein the DM-RS includes a shared DM-RS for both the PDSCH and thePDCCH on a shared resource.

Example 158 includes the subject matter of Example 142, and optionally,wherein the DM-RS includes a front-loaded DM-RS, and additional DM-RS,DM-RS symbols including the front-loaded DM-RS and the additional DM-RSbeing time bundled to yield time bundled DM-RS symbols, the methodfurther includes performing channel estimation based on the time bundledDM-RS symbols.

Example 159 includes an apparatus of a New Radio (NR) User Equipment(UE), the apparatus comprising: means for processing a signal from a NRgNodeB including an indication of a multiplexing scheme for a downlinktransmission and for a demodulation reference signal (DM-RS)corresponding to the downlink transmission, the downlink transmissionincluding at least one of a physical downlink control channel (PDCCH) ora physical downlink shared channel (PDSCH); means for determining themultiplexing scheme from the indication in the signal; and means forprocessing the downlink transmission based on the indication of themultiplexing scheme.

Example 160 includes the subject matter of Example 159, and optionally,wherein the signal including the indication of the multiplexing schemeis addressed to a plurality of NR User Equipments (UEs) including the NRUE.

Example 161 includes a machine-readable medium including code which,when executed, is to cause a machine to perform the method of any one ofExamples 142-158.

Example 162 includes an apparatus or method wherein an activation ofmultiple BWPs with the same numerology is not allowed.

Example 163 includes an apparatus or method wherein an activation ofmultiple BWPs with the same numerology with different slot durations isallowed.

Example 164 includes an apparatus or method wherein a UE is providedhaving a UE capability that allows a determination as to how many BWPswith different numerologies can be simultaneously supported, the UEbeing adapted to signal its UE capability.

Example 165 includes an apparatus or method wherein simultaneouslyactivated BWPs are allowed to overlap or not allowed to overlap.

Example 166 includes an apparatus or method wherein an activation ofmultiple BWPs with different numerologies is allowed.

Example 167 includes an apparatus or method wherein an activation ofmultiple BWPs with different numerologies supported for a UE at the sametime instance is allowed.

Example 168 includes an apparatus or method wherein an activation ofmultiple BWPs with different numerologies is allowed but not supportedin the same time instance for a UE.

Example 169 includes the subject matter of Example 168, whereinsemi-static TDM of multiple BWPs is used.

Example 170 includes the subject matter of Example 169, wherein thesemi-static TDM pattern of multiple BWPs is signaled to the UE.

Example 171 includes the subject matter of Example 169, wherein, at agiven time instance, the UE monitors only the PDCCH with thecorresponding numerology.

Example 172 includes the subject matter of Example 168, wherein a UE isto monitor PDCCH within a default BWP, and wherein: if a switchingcommand is received to switch to a signaled BWP among activated BWPs,the UE is to move to the signaled BWP, and if the UE has not beenscheduled over some time period in the BWP, the UE is to go back to adefault BWP, the switching command being in a PDCCH in the default BWP.

Example 173 includes the subject matter of Example 168, wherein acurrent slot is to indicate, e.g., via PDCCH, the BWP of the next slotamong the activated BWPs.

Example 174 includes an apparatus or method where self-BWP scheduling isimplemented when multiple BWPs are activated.

Example 175 includes the subject matter of Example 174, wherein eachCORESET is configured for each BWP.

Example 176 includes the subject matter of Example 174; wherein self BWPscheduling includes the PDCCH and the correspondingly scheduled PDSCHbeing contained within the same BWP.

Example 177 includes an apparatus or method wherein cross-BWP schedulingis used when multiple BWPs are activated.

Example 178 includes the subject matter of Example 177, wherein aCORESET is configured on only one BWP and other activated BWPs do nothave any CORESET.

Example 179 includes the subject matter of Example 178, wherein thePDCCH is sent in only one BWP, and PDSCH in other BWPs are scheduled bythe PDCCH sent in the BWP having the configured CORESET.

Example 180 includes the subject matter of Example 178; The UE isconfigured such that a UE expects to receive PDCCH in one BWP but notPDSCH in the same BWP.

Example 181 includes the subject matter of Example 180, wherein the BWPID is indicated in a DCI by the gNodeB.

Example 182 includes an apparatus or method wherein, if a UE supportsmultiple numerologies at a given time instance, a numerology, such asSCS or CP type, is used for a SS block where this numerology isdifferent from a numerology of a BWP containing a frequency range forthe SS block.

Example 183 includes an apparatus or method wherein, if a UE supportsonly a single numerology at a given time instance, the UE is notscheduled during the slots containing SS blocks with differentnumerologies.

Example 184 includes an apparatus or method wherein, if a UE supportsonly a single numerology at a given time instance, the UE is notconfigured for a BWP having a different numerology with respect to anumerology for an SS block.

Example 185 includes an apparatus comprising means to perform one ormore elements of a method described in or related to any of the previousexamples.

Example 186 includes one or more non-transitory computer-readable mediacomprising instructions to cause an electronic device, upon execution ofthe instructions by one or more processors of the electronic device, toperform one or more elements of a method described in or related to anyof the previous examples.

Example 187 an apparatus comprising logic, modules, or circuitry toperform one or more elements of a method described in or related to anyof the previous examples.

Example 188 may include a signal as described in or related to any ofthe previous examples.

Example 189 may include a signal in a wireless network as shown anddescribed herein.

Example 190 may include a method of communicating in a wireless networkas shown and described herein.

Example 191 may include a system for providing wireless communication asshown and described herein.

Example 192 may include a device for providing wireless communication asshown and described herein.

The foregoing description of one or more implementations providesillustration and description, but is not intended to be exhaustive or tolimit the scope of embodiments to the precise form disclosed.Modifications and variations are possible in light of the aboveteachings or may be acquired from practice of various embodiments.

1-6. (canceled)
 7. A baseband processor of a base station, comprising: amemory; and a processor coupled to the memory, wherein the processor isconfigured to execute instructions stored in the memory to cause thebase station to: transmit, to a user equipment (UE), a control signal ona physical downlink control channel (PDCCH) including schedulinginformation for a data signal on a physical downlink shared channel(PDSCH); determine one or more demodulation reference signal (DMRS)symbols based on a number of symbols occupied by the PDSCH; andtransmit, to the UE, DMRS during the one or more determined DMRSsymbols.
 8. The baseband processor of claim 7, wherein one or moresymbols of the PDCCH are overlapping in time with one or more symbols ofthe PDSCH, the processor to cause the base station to transmit thecontrol signal on the PDCCH and the data signal on the PDSCH usingfrequency division multiplexing (FDM).
 9. The baseband processor ofclaim 8, wherein the PDCCH and the PDSCH occupy a single symbol, andwherein the processor causes the base station to identify the singlesymbol as the one or more DMRS symbols.
 10. The baseband processor ofclaim 9, wherein the DMRS includes a PDCCH DMRS and a PDSCH DMRS, andwherein the processor further causes the base station to transmit thePDCCH DMRS and the PDSCH DMRS during the single symbol.
 11. The basebandprocessor of claim 8, wherein the processor further causes the basestation to: determine that the one or more DMRS symbols includes a firstsymbol in which the PDCCH and the PDSCH overlap; transmit the controlsignal on the PDCCH using a first set of frequency resources during thefirst symbol; and transmit the DMRS during the first symbol using asecond set of frequency resources different than the first set offrequency resources, wherein the DMRS includes a PDSCH DMRS.
 12. Thebaseband processor of claim 11, wherein the processor further causes thebase station to: determine that the one or more DMRS symbols furtherincludes a second symbol in which the PDCCH and the PDSCH do notoverlap, wherein the second symbol occurs after the first symbol intime; and transmit the DMRS using the first set of frequency resourcesduring the second symbol.
 13. The baseband processor of claim 11,wherein the PDCCH spans two symbols including the first symbol and asecond symbol, wherein the PDSCH spans the two symbols, and wherein theprocessor further causes the base station to transmit a PDCCH DMRS tothe UE during the first and second symbols.
 14. The baseband processorof claim 8, wherein the processor further causes the base station to:determine that the one or more DMRS symbols includes a second symbol ofthe PDSCH transmission; and transmit the DMRS during the second symbol,wherein the DMRS includes a PDSCH DMRS.
 15. The baseband processor ofclaim 7, wherein one or more symbols of the PDCCH are overlapping intime with one or more symbols of the PDSCH, wherein the processorfurther causes the base station to: configure a shared resource for thePDCCH and the PDSCH; transmit the PDCCH and the PDSCH using spatialdivision multiplexing (SDM) using the shared resource; transmit adedicated PDSCH DMRS to the UE; and transmit a shared DMRS to the UEusing the shared resource. 16-20. (canceled)
 21. A method to beperformed by a base station, comprising: transmitting, to a userequipment (UE), a control signal on a physical downlink control channel(PDCCH) including scheduling information for a data signal on a physicaldownlink shared channel (PDSCH); determining one or more demodulationreference signal (DMRS) symbols based on a number of symbols occupied bythe PDSCH; and transmitting, to the UE, DMRS during the one or moredetermined DMRS symbols.
 22. The method of claim 21, wherein one or moresymbols of the PDCCH are overlapping in time with one or more symbols ofthe PDSCH, and wherein the method further comprises transmitting thecontrol signal on the PDCCH and the data signal on the PDSCH usingfrequency division multiplexing (FDM).
 23. The method of claim 22,wherein the PDCCH and the PDSCH occupy a single symbol, and wherein themethod further comprises identifying the single symbol as the one ormore DMRS symbols.
 24. The method of claim 23, wherein the DMRS includesa PDCCH DMRS and a PDSCH DMRS, and wherein the method further comprisestransmitting the PDCCH DMRS and the PDSCH DMRS during the single symbol.25. The method of claim 22, further comprising: determining that the oneor more DMRS symbols includes a first symbol in which the PDCCH and thePDSCH overlap; transmitting the control signal on the PDCCH using afirst set of frequency resources during the first symbol; andtransmitting the DMRS during the first symbol using a second set offrequency resources different than the first set of frequency resources,wherein the DMRS includes a PDSCH DMRS.
 26. The method of claim 25,further comprising: determining that the one or more DMRS symbolsfurther includes a second symbol in which the PDCCH and the PDSCH do notoverlap, wherein the second symbol occurs after the first symbol intime; and transmitting the DMRS using the first set of frequencyresources during the second symbol.
 27. An apparatus of a base station,comprising: a memory; and a processor coupled to the memory, wherein theprocessor is configured to execute instructions stored in the memory tocause the base station to: transmit, to a user equipment (UE), a controlsignal on a physical downlink control channel (PDCCH) includingscheduling information for a data signal on a physical downlink sharedchannel (PDSCH); determine one or more demodulation reference signal(DMRS) symbols based on a number of symbols occupied by the PDSCH; andtransmit, to the UE, DMRS during the one or more determined DMRSsymbols.
 28. The apparatus of claim 27, wherein one or more symbols ofthe PDCCH are overlapping in time with one or more symbols of the PDSCH,the processor to cause the base station to transmit the control signalon the PDCCH and the data signal on the PDSCH using frequency divisionmultiplexing (FDM).
 29. The apparatus of claim 28, wherein the processorfurther causes the base station to: determine that the one or more DMRSsymbols includes a first symbol in which the PDCCH and the PDSCHoverlap; transmit the control signal on the PDCCH using a first set offrequency resources during the first symbol; and transmit the DMRSduring the first symbol using a second set of frequency resourcesdifferent than the first set of frequency resources, wherein the DMRSincludes a PDSCH DMRS.
 30. The apparatus of claim 28, wherein theprocessor further causes the base station to: determine that the one ormore DMRS symbols includes a second symbol of the PDSCH transmission;and transmit the DMRS during the second symbol, wherein the DMRSincludes a PDSCH DMRS.
 31. The apparatus of claim 27, wherein one ormore symbols of the PDCCH are overlapping in time with one or moresymbols of the PDSCH, wherein the processor further causes the basestation to: configure a shared resource for the PDCCH and the PDSCH;transmit the PDCCH and the PDSCH using spatial division multiplexing(SDM) using the shared resource; transmit a dedicated PDSCH DMRS to theUE; and transmit a shared DMRS to the UE using the shared resource.